Emperor Augustus served as the first Roman emperor. His Principate ended republican rule in Rome and began Pax Romana.

The Roman Emperors were rulers of the Roman Empire, wielding power over its citizens and military. The empire was developed as the Roman Republic invaded and occupied most of Europe and portions of northern Africa and western Asia. Under the republic, regions of the empire were ruled by provincial governors answerable to and authorised by the "Senate and People of Rome". Rome and its senate were ruled by a variety of magistrates – of whom the consuls were the most powerful. The republic ended, and the emperors were created, when these magistrates became legally and practically subservient to one citizen with power over all other magistrates. Augustus, the first emperor, was careful to maintain the façade of republican rule, taking no specific title for his position^[1] and calling the concentration of magisterial power princeps senatus (the first man of the senate).^[1] This style of government that lasted for 300 years is thus called the Principate. The modern word 'emperor' derives from the title imperator, which was granted by an army to a successful general; during the initial phase of the empire, it still had to be earned by the princeps. The term emperor is a modern construction, used when describing rulers of the Roman Empire because it emphasises the strong links between the ruler and the army (on whose support the ruler's power depended), and does not discriminate between the personal styles of rule and titles in different phases of the Empire.

In the late 3rd century, after the Crisis of the Third Century, Diocletian formalised and embellished the recent manner of imperial rule, establishing the so-called Dominate period of the Roman Empire. This was characterised by the explicit increase of authority in the person of the Emperor, and the use of the style Dominus Noster ("Our Lord"). The rise of powerful Barbarian tribes along the borders of the empire and the challenge they posed to defense of far-flung borders and unstable imperial succession led Diocletian to experiment with sharing imperial titles and responsibilities among several individuals - a partial reversion to pre-Augustian Roman traditions. For nearly two centuries thereafter there was often more than one emperor at a time, frequently dividing the administration of the vast territories between them. As Henry Moss warned, "Yet it is important to remember that in the eyes of contemporaries the Empire was still one and indivisible. It is false to the ideas of this time to speak of 'the Eastern and Western Empire'; the two halves of Empire were thought of as 'the Eastern, or Western parts' (partes orientis vel occidentis.)"^[2] However, after the death of Theodosius I in 395, the split became firmly entrenched (see: the Western Roman Empire and the Eastern Roman Empire).^[3] The last pretense of such division was formally ended by Zeno after the death of Julius Nepos in 480. For the remaining thousand years of the Eastern Roman Empire there would only ever be one legitimate senior emperor, ruling from Constantinople and maintaining claim to the increasingly unstable territories in the west. After 480, multiple claims to be the imperial title of Augustus (or Basileus for Greek speakers) necessarily meant civil war, although the experiment with designating junior emperors (known as Caesars), usually to indicate the intended successor, occasionally reappeared.

The Empire and chain of emperors continued until the death of Constantine XI Palaiologos and the capture of Constantinople by the Ottoman Empire in 1453.^[4] The use of the terms "Byzantium," "Byzantine Empire," and "Byzantine Emperor" to refer to the medieval period of the Roman Empire has been common, but not universal, among Western scholars since the 18th century, and continues to be a subject of specialist debate today.^[5]

Legitimacy[edit]

The emperors listed in this article are those generally agreed to have been 'legitimate' emperors, and who appear in published regnal lists.^[6][7][8] The word 'legitimate' is used by most authors, but usually without clear definition, perhaps not surprisingly, since the emperorship was itself rather vaguely defined legally. In Augustus' original formulation, the princeps was selected by either the Senate or "the people" of Rome, but quite quickly the legions became an acknowledged stand-in for "the people." A person could be proclaimed as emperor by their troops or by "the mob" in the street, but in theory needed to be confirmed by the Senate. The coercion that frequently resulted was implied in this formulation. Furthermore, a sitting emperor was empowered to name a successor and take him on as apprentice in government and in that case the Senate had no role to play, although it sometimes did when a successor lacked the power to inhibit bids by rival claimants. By the medieval (or "Byzantine") period, the very definition of the Senate became vague as well, adding to the complication.^[9]

Lists of legitimate emperors are therefore partly influenced by the subjective views of those compiling them, and also partly by historical convention. Many of the 'legitimate' emperors listed here acceded to the position by usurpation, and many 'illegitimate' claimants had a legitimate claim to the position. Historically^{[by whom?]}, the following criteria have been used to derive emperor lists:

• Any individual who undisputedly ruled the whole Empire, at some point, is a 'legitimate emperor'(1).


• Any individual who was nominated as heir or co-emperor by a legitimate emperor (1), and who succeeded to rule in his own right, is a legitimate emperor (2).


• Where there were multiple claimants, and none were legitimate heirs, the claimant accepted by the Roman Senate as emperor is the legitimate emperor (3), at least during the Principate.

So for instance, Aurelian, though acceding to the throne by usurpation, was the sole and undisputed monarch between 270–275 AD, and thus was a legitimate emperor. Gallienus, though not in control of the whole Empire, and plagued by other claimants, was the legitimate heir of (the legitimate emperor) Valerian. Claudius Gothicus, though acceding illegally, and not in control of the whole Empire, was the only claimant accepted by the Senate, and thus, for his reign, was the legitimate emperor. Equally, during the Year of the Four Emperors, all claimants, though not undisputed, were at some point accepted by the Senate and are thus included; conversely, during the Year of the Five Emperors neither Pescennius Niger nor Clodius Albinus were accepted by the Senate, and are thus not included. There are a few examples where individuals were made co-emperor, but never wielded power in their own right (typically the child of an emperor); these emperors are legitimate, but are not included in regnal lists, and in this article are listed together with the 'senior' emperor.

Emperors after 395[edit]

After 395, the list of emperors in the East is based on the same general criteria, with the exception that the emperor only had to be in undisputed control of the Eastern part of the empire, or be the legitimate heir of the Eastern emperor.

The situation in the West is more complex. Throughout the final years of the Western Empire (395–480) the Eastern emperor was considered the senior emperor, and a Western emperor was only legitimate if recognized as such by the Eastern emperor. Furthermore, after 455 the Western emperor ceased to be a relevant figure and there was sometimes no claimant at all. For the sake of historical completeness, all Western Emperors after 455 are included in this list, even if they were not recognized by the Eastern Empire;^[10] some of these technically illegitimate emperors are included in regnal lists, while others are not. For instance, Romulus Augustulus was technically a usurper who ruled only the Italian peninsula and was never legally recognized. However, he was traditionally considered the "last Roman Emperor" by 18th and 19th century western scholars and his overthrow by Odoacer used as the marking point between historical epochs, and as such he is usually included in regnal lists. However, modern scholarship has confirmed that Romulus Augustulus' predecessor, Julius Nepos continued to rule as emperor in the other Western holdings and as a figurehead for Odoacer's rule in Italy until Nepos' death in 480. Since the question of what constitutes an emperor can be ambiguous, and dating the "fall of the Western Empire" arbitrary, this list includes details of both figures.

The Principate[edit]

Julio-Claudian dynasty (27 BC – 68 AD)[edit]

Portrait	Name	Birth	Succession	Reign	Time in office	Death
	Augustus IMPERATOR CAESAR DIVI FILIVS AVGVSTVS	September 23, 63 BC, Rome, Italia	Great-nephew and adopted son of Julius Caesar; became de facto emperor as a result of the 'first settlement' between himself and the Roman Senate.	January 16, 27 BC – August 19, 14 AD	40 years, 7 months and 3 days	August 19, 14 AD (aged 75) Natural causes
	Tiberius TIBERIVS CAESAR DIVI AVGVSTI FILIVS AVGVSTVS	November 16, 42 BC, Rome	Natural son of Livia Drusilla, Augustus' third wife, by a previous marriage; stepbrother and third husband of Julia the Elder, daughter of Augustus; adopted by Augustus as his son and heir.	September 18, 14 AD – March 16, 37 AD	22 years, 5 months and 27 days	March 16, 37 AD (aged 77) Probably natural causes, possibly assassinated by Caligula or praetorian prefect Naevius Sutorius Macro
	Caligula GAIVS IVLIVS CAESAR AVGVSTVS GERMANICVS	August 31, 12 AD, Antium, Italia	Great-nephew and adoptive grandson of Tiberius; natural son of Germanicus; great-grandson of Augustus.	March 18, 37 AD – January 24, 41 AD	3 years, 10 months and 6 days	January 24, 41 AD (aged 28) Assassinated in a conspiracy involving senators and Praetorian Guards.
	Claudius TIBERIVS CLAVDIVS CAESAR AVGVSTVS GERMANICVS	August 1, 10 BC, Lugdunum, Gallia Lugdunensis	Uncle of Caligula; brother of Germanicus; nephew of Tiberius; great-nephew and step-grandson of Augustus; proclaimed emperor by the Praetorian Guard.	January 25/26, 41 AD – October 13, 54 AD	13 years, 8 months and 18/19 days	October 13, 54 AD (aged 63) Probably poisoned by his wife Agrippina the Younger, in favour of her son Nero, possibly natural causes.
	Nero NERO CLAVDIVS CAESAR AVGVSTVS GERMANICVS	December 15, 37 AD, Antium, Italia	Great-nephew, stepson, son-in-law and adopted son of Claudius; nephew of Caligula; great-great-nephew of Tiberius; grandson of Germanicus; great-great-grandson of Augustus	October 13, 54 AD – June 9, 68 AD	13 years, 7 months and 27 days	June 9, 68 AD (aged 30) Committed suicide after being declared a public enemy by the Senate.

Flavian dynasty (68–96)[edit]

Portrait	Name	Birth	Succession	Reign	Time in office	Death
	Galba SERVIVS SVLPICIVS GALBA CAESAR AVGVSTVS	December 24, 3 BC, Near Terracina, Italia	Seized power after Nero's suicide, with support of the Spanish legions	June 8, 68 AD – January 15, 69 AD	7 months and 7 days	January 15, 69 AD (aged 70) Murdered by Praetorian Guard in coup led by Otho
	Otho MARCVS SALVIVS OTHO CAESAR AVGVSTVS	April 28, 32 AD, Ferentinum, Italia	Appointed by Praetorian Guard	January 15, 69 AD – April 16, 69 AD	3 months and 1 day (91 days)	April 16, 69 AD (aged 36) Committed suicide after losing Battle of Bedriacum to Vitellius
	Vitellius AVLVS VITELLIVS GERMANICVS AVGVSTVS	September 24, 15 AD, Rome	Seized power with support of German Legions (in opposition to Galba/Otho)	April 17, 69 AD – December 20, 69 AD	8 months and 3 days	December 20, 69 AD (aged 54) Murdered by Vespasian's troops
	Vespasian TITVS FLAVIVS CAESAR VESPASIANVS AVGVSTVS	November 17, 9 AD, Falacrine, Italia	Seized power with the support of the eastern Legions (in opposition to Vitellius)	December 21, 69 AD – June 24, 79 AD	9 years, 6 months and 3 days	June 24, 79 AD (aged 69) Natural causes
	Titus TITVS FLAVIVS CAESAR VESPASIANVS AVGVSTVS	December 30, 39 AD, Rome	Son of Vespasian	June 24, 79 AD – September 13, 81 AD	2 years, 2 months and 20 days	September 13, 81 AD (aged 41) Natural causes (fever)
	Domitian TITVS FLAVIVS CAESAR DOMITIANVS AVGVSTVS	October 24, 51 AD, Rome	Son of Vespasian	September 14, 81 AD – September 18, 96 AD	15 years and 4 days	September 18, 96 AD (aged 44) Assassinated by court officials

Nerva–Antonine dynasty (96–192)[edit]

Portrait	Name	Birth	Succession	Reign	Time in office	Death
	Nerva MARCVS COCCEIVS NERVA CAESAR AVGVSTVS	November 8, 30 AD, Narni, Italia	Appointed by the Senate	September 18, 96 AD – January 27, 98 AD	1 year, 4 months and 9 days	January 27, 98 AD (aged 67) Natural causes
	Trajan CAESAR MARCVS VLPIVS NERVA TRAIANVS AVGVSTVS	September 18, 53 AD, Italica, Hispania Baetica	Adopted son and heir of Nerva	January 28, 98 AD – August 7, 117 AD	19 years, 6 months and 10 days	August 7, 117 AD (aged 63) Natural causes
	Hadrian CAESAR PVBLIVS AELIVS TRAIANVS HADRIANVS AVGVSTVS	January 24, 76 AD, Italica, Hispania Baetica (or Rome)	Adopted son and heir of Trajan	August 11, 117 AD – July 10, 138 AD	20 years, 10 months and 30 days	July 10, 138 AD (aged 62) Natural causes
	Antoninus Pius CAESAR TITVS AELIVS HADRIANVS ANTONINVS AVGVSTVS PIVS	September 19, 86 AD, Near Lanuvium, Italia	Adopted son and heir of Hadrian	July 10, 138 AD – March 7, 161 AD	22 years, 6 months and 28 days	March 7, 161 AD (aged 74) Natural causes
	Lucius Verus CAESAR LVCIVS AVRELIVS VERVS AVGVSTVS	December 15, 130 AD, Rome	Adopted son and heir of Antoninus Pius and son-in-law of Marcus Aurelius; Co-emperor with Marcus Aurelius until his death	March 7, 161 AD – ? March 169 AD	8 years	March 169 AD (aged 39) Natural causes (Plague)
	Marcus Aurelius CAESAR MARCVS AVRELIVS ANTONINVS AVGVSTVS	April 26, 121 AD, Rome	Adopted son, son-in-law and heir of Antoninus Pius; Co-emperor with Lucius Verus until 169 AD	March 7, 161 AD – March 17, 180 AD	19 years and 10 days	March 17, 180 AD (aged 58) Natural causes
	Commodus CAESAR MARCVS AVRELIVS COMMODVS ANTONINVS AVGVSTVS	August 31, 161 AD, Lanuvium, Italia	Natural son of Marcus Aurelius; joint emperor from 177 AD	177 AD – December 31, 192 AD	3 years as joint emperor, 12 as sole emperor	December 31, 192 AD (aged 31) Assassinated in palace, strangled in his bath

Severan dynasty (193–235)[edit]

Portrait	Name	Birth	Succession	Reign	Time in office	Death
	Pertinax CAESAR PVBLIVS HELVIVS PERTINAX AVGVSTVS	August 1, 126 AD, Alba, Italia	Proclaimed emperor by Praetorian Guard	January 1, 193 AD – March 28, 193 AD	2 months and 27 days (86 days)	March 28, 193 AD (aged 66) Murdered by Praetorian Guard
	Didius Julianus CAESAR MARCVS DIDIVS SEVERVS IVLIANVS AVGVSTVS	133 or 137 AD, Milan, Italia	Won auction held by the Praetorian Guard for the position of emperor	March 28, 193 AD – June 1, 193 AD	2 months and 4 days (65 days)	June 1, 193 AD (aged 56 or 60) Executed on orders of the Senate
	Septimius Severus CAESAR LVCIVS SEPTIMIVS SEVERVS PERTINAX AVGVSTVS	April 11, 145 AD, Leptis Magna, Libya	Seized power with support of Pannonian legions[a]	April 9, 193 AD – February 4, 211 AD	17 years, 9 months and 26 days	February 4, 211 AD (aged 65) Natural causes
	Caracalla CAESAR MARCVS AVRELIVS SEVERVS ANTONINVS PIVS AVGVSTVS	April 4, 188 AD, Lugdunum, Gallia Lugdunensis	Son of Septimius Severus; co-emperor with Severus from 198 AD; with Severus and Geta from 209 AD until February 211 AD; co-emperor with Geta until December 211 AD	198 AD – April 8, 217 AD	13 years as joint emperor 10 months with Geta 6 years as sole emperor	April 8, 217 AD (aged 29) Murdered by a soldier as part of a conspiracy involving Macrinus
	Geta CAESAR PVBLIVS SEPTIMIVS GETA AVGVSTUS	March 7, 189 AD, Rome	Son of Septimius Severus; co-emperor with Severus and Caracalla from 209 AD until February 211 AD; co-emperor with Caracalla until December 211 AD	209 AD – December 26, 211 AD	2 years as joint emperor 10 months with Caracalla	December 19, 211 AD (aged 22) Murdered on the orders of Caracalla
	Macrinus CAESAR MARCVS OPELLIVS SEVERVS MACRINVS AVGVSTVS PIVS FELIX with Diadumenian MARCVS OPELLIVS ANTONINVS DIADVMENIANVS	c. 165 AD, Caesarea, Mauretania	Praetorian Prefect to Caracalla, probably conspired to have Caracalla murdered and proclaimed himself emperor after Caracalla's death; made his son Diadumenian co-emperor in May 218 AD	April 11, 217 AD – June 8, 218 AD	1 year, 1 month and 28 days	June 8, 218 AD (aged 53) Both executed in favour of Elagabalus
	Elagabalus MARCVS AVRELIVS ANTONINVS AVGVSTVS	c. 203 AD, Emesa, Syria	Grandnephew of Septimius Severus, first cousin once removed and alleged illegitimate son of Caracalla; proclaimed emperor by Syrian legions	June 8, 218 AD – March 11, 222 AD	3 years, 9 months and 3 days	March 11, 222 AD (aged 18) Murdered by Praetorian Guard
	Severus Alexander CAESAR MARCVS AVRELIVS SEVERVS ALEXANDER AVGVSTVS	c. 207 AD, Arca Caesarea, Syria	Grandnephew of Septimius Severus, cousin and adoptive heir of Elagabalus	March 13, 222 AD – March 18, 235 AD	13 years and 5 days	March 18, 235 AD (aged 28) Murdered by the army

Gordian dynasty (235–285)[edit]

Portrait	Name	Birth	Succession	Reign	Time in office	Death
	Maximinus Thrax CAESAR GAIVS IVLIVS VERVS MAXIMINVS AVGVSTVS	c. 173 AD, Thrace or Moesia	Proclaimed emperor by German legions after the murder of Severus Alexander	March 20, 235 AD – June 238 AD	3 years, 3 months	June 238 AD (aged 65) Assassinated by Praetorian Guard
	Gordian I CAESAR MARCVS ANTONIVS GORDIANVS SEMPRONIANVS AFRICANVS AVGVSTVS	c. 159 AD, Phrygia?	Proclaimed emperor, whilst Pro-consul in Africa, during a revolt against Maximinus. Ruled jointly with his son Gordian II, and in opposition to Maximinus. Technically a usurper, but retrospectively legitimised by the accession of Gordian III	March 22, 238 AD – April 12, 238 AD	21 days	April 238 AD (aged 79) Committed suicide upon hearing of the death of Gordian II.
	Gordian II CAESAR MARCVS ANTONIVS GORDIANVS SEMPRONIANVS ROMANVS AFRICANVS AVGVSTVS	c. 192 AD, ?	Proclaimed emperor, alongside father Gordian I, in opposition to Maximinus by act of the Senate.	March 22, 238 AD – April 12, 238 AD	21 days	April 238 AD (aged 46) Killed during the Battle of Carthage, fighting a pro-Maximinus army
	Pupienus CAESAR MARCVS CLODIVS PVPIENVS MAXIMVS AVGVSTVS	c. 178 AD, ?	Proclaimed joint emperor with Balbinus by the Senate in opposition to Maximinus; later co-emperor with Balbinus.	April 22, 238 AD – July 29, 238 AD	3 months and 7 days	July 29, 238 AD (aged 68 or 73) Assassinated by the Praetorian Guard
	Balbinus CAESAR DECIMVS CAELIVS CALVINVS BALBINVS PIVS AVGVSTVS	?	Proclaimed joint emperor with Pupienus by the Senate after death of Gordian I and II, in opposition to Maximinus; later co-emperor with Pupienus and Gordian III	April 22, 238 AD – July 29, 238 AD	3 months and 7 days	July 29, 238 AD (aged 60) Assassinated by Praetorian Guard
	Gordian III CAESAR MARCVS ANTONIVS GORDIANVS AVGVSTVS	January 20, 225 AD, Rome	Proclaimed emperor by supporters of Gordian I and II, then by the Senate; joint emperor with Pupienus and Balbinus until July 238 AD; grandson and nephew of Gordian I and II, respectively	April 22, 238 AD – February 11, 244 AD	5 years, 9 months and 20 days	February 11, 244 AD (aged 19) Unknown; possibly murdered on orders of Philip I
	Philip the Arab CAESAR MARCVS IVLIVS PHILIPPVS AVGVSTVS with Philip II MARCVS IVLIVS SEVERVS PHILLIPVS AVGVSTVS	c. 204 AD, Shahba, Syria	Praetorian Prefect to Gordian III, took power after his death; made his son Philip II co-emperor in summer 247 AD	February 244 AD – September/October 249 AD	5 years	September/October 249 AD (aged 45) Killed in the Battle of Verona by Decius
	Decius CAESAR GAIVS MESSIVS QVINTVS TRAIANVS DECIVS AVGVSTVS with Herennius Etruscus QVINTVS HERENNIVS ETRVSCVS MESSIVS DECIVS AVGVSTVS	c. 201 AD, Budalia, Pannonia Inferior	Governor under Philip the Arab; proclaimed emperor by Danubian legions then defeating and killing Philip in the Battle of Verona; made his son Herennius Etruscus co-emperor in early 251 AD	September/ October 249 AD – June 251 AD	2 years	June 251 AD (aged 50) Both killed in the Battle of Abrittus fighting against the Goths
	Hostilian CAESAR CAIVS VALENS HOSTILIANVS MESSIVS QVINTVS AVGVSTVS	Sirmium	Son of Decius, accepted as heir by the Senate	June 251 AD – late 251 AD	4–5 months	September/October 251 AD (aged 21) Natural causes (plague)
	Trebonianus Gallus CAESAR GAIVS VIBIVS TREBONIANVS GALLVS AVGVSTVS with Volusianus GAIVS VIBIVS VOLVSIANVS AVGVSTVS	206 AD, Italia	Governor of Moesia Superior, proclaimed emperor by Danubian legions after Decius's death (and in opposition to Hostilian); made his son Volusianus co-emperor in late 251 AD.	June 251 AD – August 253 AD	2 years	August 253 AD (aged 47) Assassinated by their own troops, in favour of Aemilian
	Aemilian CAESAR MARCVS AEMILIVS AEMILIANVS AVGVSTVS	c. 207 or 213 AD Africa	Governor of Moesia Superior, proclaimed emperor by Danubian legions after defeating the Goths; accepted as emperor after death of Gallus	August 253 AD – October 253 AD	2 months	September/October 253 AD (aged 40 or 46) Assassinated by his own troops, in favour of Valerian
	Valerian CAESAR PVBLIVS LICINIVS VALERIANVS AVGVSTVS	c. 195 AD	Governor of Noricum and Raetia, proclaimed emperor by Rhine legions after death of Gallus; accepted as emperor after death of Aemilian	October 253 AD – 260 AD	7 years	After 260 AD (aged at least 65) Captured in Battle of Edessa against Persians, died in captivity
	Gallienus CAESAR PVBLIVS LICINIVS EGNATIVS GALLIENVS AVGVSTVS with Saloninus PVBLIVS LICINIVS CORNELIVS SALONINVS VALERIANVS AVGVSTVS	218 AD	Son of Valerian, made co-emperor in 253 AD; his son Saloninus is very briefly co-emperor in c. July 260 before assassination by Postumus.	October 253 AD – September 268 AD	15 years	September 268 AD (aged 50) Murdered at Aquileia by his own commanders.
	Claudius II CAESAR MARCVS AVRELIVS CLAVDIVS AVGVSTVS	May 10, 210 AD, Sirmium	Victorious general at Battle of Naissus, seized power after Gallienus's death	September 268 AD – January 270 AD	1 year, 4 months	January 270 AD (aged 60) Natural causes (plague)
	Quintillus CAESAR MARCVS AVRELIVS CLAVDIVS QVINTILLVS AVGVSTVS	c.210 AD, Sirmium	Brother of Claudius II, seized power after his death	January 270 AD – September(?) 270 AD	Unknown	270 AD (aged around 60) Unclear; possibly suicide or murder
	Aurelian CAESAR LVCIVS DOMITIVS AVRELIANVS AVGVSTVS	September 9, 214 AD/215 AD, Sirmium	Proclaimed emperor by Danubian legions after Claudius II's death, in opposition to Quintillus	September(?) 270 AD – September 275 AD	5 years	September 275 AD (aged 60-61) Assassinated by Praetorian Guard
	Tacitus CAESAR MARCVS CLAVDIVS TACITVS AVGVSTVS	c. 200, Interamna Nahars, Italia	Elected by the Senate to replace Aurelian, after a short interregnum	September 25, 275 AD – June 276 AD	9 months	June 276 AD (aged 76) Natural causes (possibly assassinated)
	Florianus CAESAR MARCVS ANNIVS FLORIANVS AVGVSTVS	?	Brother of Tacitus, elected by the army in the west to replace him	June 276 AD – September? 276 AD	3 months	September? 276 AD (aged ?) Assassinated by his own troops, in favour of Probus
	Probus CAESAR MARCVS AVRELIVS PROBVS AVGVSTVS	232 AD, Sirmium	Governor of the eastern provinces, proclaimed emperor by Danubian legions in opposition to Florian	September? 276 AD – September/ October 282 AD	6 years	September/ October 282 AD (aged 50) Assassinated by his own troops, in favour of Carus
	Carus CAESAR MARCVS AVRELIVS CARVS AVGVSTVS	c. 230 AD, Narbo, Gallia Narbonensis	Praetorian Prefect to Probus; seized power either before or after Probus was murdered; made his son Carinus co-emperor in early 283 AD	September/ October 282 AD – late July/ early August 283 AD	10–11 months	Late July/August 283 AD (aged 61) Probably natural causes (Possibly killed by lightning)
	Numerian CAESAR MARCVS AVRELIVS NVMERIVS NVMERIANVS AVGVSTVS	?	Son of Carus, succeeded him jointly with his brother Carinus	Late July/early August 283 AD – 284 AD?	1 year	284 AD (aged ?) Unclear; possibly assassinated
	Carinus CAESAR MARCVS AVRELIVS CARINVS AVGVSTVS	?	Son of Carus, ruled shortly with him and then with his brother Numerian	Early 283 AD – 285 AD	2 years	285 AD (aged ?) Probably died in battle against Diocletian

The Dominate[edit]

Tetrarchy and Constantinian dynasty (284–364)[edit]

Note: To maintain control and improve administration, various schemes to divide the work of the Roman Emperor by sharing it between individuals were tried after 285. The "Tetrarchy" proclaimed by Diocletian in 293 split the empire into two halves each to be ruled separately by two emperors, a senior "Augustus", and a junior "Caesar".

Portrait	Name	Birth	Succession	Reign	Time in office	Death
	Diocletian CAESAR GAIVS AVRELIVS VALERIVS DIOCLETIANVS AVGVSTVS (EAST and WEST) then, after 286 (EAST)	c. December 22, 244 AD, Salona	Proclaimed emperor by army after death of Numerian, and in opposition to Carinus; adopted Maximian as senior co-emperor in 286 AD	November 20, 284 AD – May 1, 305 AD	20 years, 5 months and 11 days	3 December 311 AD (aged 67) Abdicated; died of natural causes in Aspalatos
	Maximian CAESAR MARCVS AVRELIVS VALERIVS MAXIMIANVS AVGVSTVS (WEST)	c. 250 AD, near Sirmium, Pannonia	Adopted as senior co-emperor ('Augustus') in the west by Diocletian in 286 AD	April 1, 286 AD – May 1, 305 AD	19 years and 1 month	310 AD (aged 60) Abdicated with Diocletian; twice tried to regain throne with, and then from Maxentius; captured by Constantine I and committed suicide at his behest
	Galerius CAESAR GAIVS GALERIVS VALERIVS MAXIMIANVS AVGVSTVS (EAST)	c. 250 AD, Felix Romuliana, Moesia Superior	Adopted as junior co-emperor ('Caesar') and heir by Diocletian in 293 AD. Also son-in-law of Diocletian.	May 1, 305 AD – May 311 AD	6 years	311 AD (aged 61) Natural causes
	Constantius Chlorus CAESAR MARCVS FLAVIVS VALERIVS CONSTANTIVS AVGVSTVS (WEST)	March 31, c. 250 AD, Dardania, Moesia	Adopted as junior co-emperor ('Caesar') and heir by Maximian in 293 AD	May 1, 305 AD – July 25, 306 AD	1 year, 2 months and 24 days	306 AD (aged 56) Natural causes
	Valerius Severus FLAVIVS VALERIVS SEVERVS AVGVSTVS (WEST)	?	Adopted as junior co-emperor ('Caesar') and heir by Constantius Chlorus in 305 AD; succeeded as Augustus in 306; opposed by Maxentius and Constantine I	Summer 306 AD – March/ April 307 AD	1 year	September 16, 307 AD (aged ?) Captured by Maxentius and forced to commit suicide (or murdered)
	Constantine the Great CAESAR FLAVIVS VALERIVS AVRELIVS CONSTANTINVS AVGVSTVS (WEST) then, after 324 (EAST and WEST)	February 27, c. 272 AD, Naissus, Moesia Superior	Son of Constantius I Chlorus, proclaimed emperor by his father's troops; accepted as Caesar (west) by Galerius in 306 AD; promoted to Augustus (west) in 307 AD by Maximian after death of Severus II; refused relegation to Caesar in 309 AD	July 25, 306 AD – May 22, 337 AD	30 years, 9 months and 27 days	May 22, 337 AD (aged 65) Natural causes
	Maxentius MARCVS AVRELIVS VALERIVS MAXENTIVS AVGVSTVS (WEST)	c. 278 AD	Son of Maximian, seized power in 306 after death of Constantius I Chlorus, in opposition to Severus and Constantine I; made Caesar (west) by Maximian in 307 AD after the death of Severus	October 28, 306 AD – October 28, 312 AD	6 years	October 28, 312 AD (aged 34) Died at the Battle of the Milvian Bridge, against Constantine I
	Licinius I CAESAR GAIVS VALERIVS LICINIVS AVGVSTVS (EAST) with Valerius Valens AVRELIVS VALERIVS VALENS and Martinian SEXTVS MARCIVS MARTININANVS	c. 250 AD, Felix Romuliana, Moesia Superior	Son-in-law of Constantius Chlorus, appointed Augustus in the west by Galerius in 308 AD, in opposition to Maxentius; became Augustus in the east in 311 AD after the death of Galerius (shared with Maximinus II); defeated Maximinus in civil war to become sole eastern Augustus in 313 AD; appointed Valerius Valens in 317 AD, and Sextus Martinian in 324 AD as western Augustus, in opposition to Constantine, both being executed within weeks.	November 11, 308 AD – September 18, 324 AD	15 years, 10 months and 7 days	325 AD (aged 61/62) Defeated in civil war against Constantine I in 324 AD and captured; executed on the orders of Constantine the next year
	Maximinus II CAESAR GALERIVS VALERIVS MAXIMINVS AVGVSTVS (EAST)	November 20, c. 270 AD, Dacia Aureliana	Nephew of Galerius, adopted as Caesar and his heir in 305 AD; succeeded as Augustus (shared with Licinius I) in 311 AD	May 1, 311 AD – July/August 313 AD	2 years	July/August 313 AD (aged 42) Defeated in civil war against Licinius; probably committed suicide thereafter
	Constantine II CAESAR FLAVIVS CLAVDIVS CONSTANTINVS AVGVSTVS (WEST)	316 AD, Arelate, Gallia Narbonensis	Son of Constantine I; appointed Caesar in 317 AD, succeeded as joint Augustus with his brothers Constantius II and Constans I	May 22, 337 AD – 340 AD	3 years	340 AD (aged 24) Died in battle against Constans I
	Constantius II CAESAR FLAVIVS IVLIVS CONSTANTIVS AVGVSTVS (EAST) then, after 356 (EAST and WEST)	August 7, 317 AD, Sirmium, Pannonia	Son of Constantine I; succeeded as joint Augustus with his brothers Constantine II and Constans I; sole emperor from 350 AD	May 22, 337 AD – November 3, 361 AD	24 years, 5 months and 12 days	361 AD (aged 44) Natural causes
	Constans CAESAR FLAVIVS IVLIVS CONSTANS AVGVSTVS (MIDDLE) then, after 340 (WEST)	c. 323 AD	Son of Constantine I; succeeded as joint Augustus with his brothers Constantine II and Constantius II	May 22, 337 AD – 350 AD	13 years	350 AD (aged 27) Assassinated on the orders of the usurper Magnentius
	Vetranio CAESAR FLAVIVS VETRANIO AVGVSTVS (WEST)	?, Moesia	General of Constans, proclaimed Caesar against Magnentius and temporarily accepted as Augustus of the west by Constantius II.	March 1, 350 AD – December 25, 350 AD	9 months and 24 days	c. 356 AD (aged ?) As a private citizen, after abdication.
	Julian CAESAR FLAVIVS CLAVDIVS IVLIANVS AVGVSTVS (WEST) then, after 361 (EAST and WEST)	331 AD/332 AD, Constantinople, Thracia	Cousin of Constantius II; made Caesar of the west in 355 AD; proclaimed Augustus by his troops in 360; sole emperor after the death of Constantius	February 360 AD – June 26, 363 AD	3 years	June 26, 363 AD (aged 31/32) Mortally wounded in battle
	Jovian CAESAR FLAVIVS IOVIANVS AVGVSTVS (EAST and WEST)	331 AD, Singidunum, Moesia	General of Julian's army; proclaimed emperor by the troops on Julian's death	June 26, 363 AD – February 17, 364 AD	7 months and 22 days	February 17, 364 AD (aged 33) Natural causes (suffocated on fumes)

Valentinian dynasty (364–392)[edit]

Portrait	Name	Birth	Succession	Reign	Time in office	Death
	Valentinian I FLAVIVS VALENTINIANVS AVGVSTVS (EAST and WEST) then (WEST)	321 AD, Cibalae, Pannonia	Elected to replace Jovian by the army	February 26, 364 AD – November 17, 375 AD	11 years, 8 months and 22 days	November 17, 375 AD (aged 54) Natural causes
	Valens FLAVIVS IVLIVS VALENS AVGVSTVS (EAST)	328 AD, Cibalae, Pannonia	Brother of Valentinian I, appointed co-augustus (for the east) by him	March 28, 364 AD – August 9, 378 AD	14 years, 4 months and 12 days	August 9, 378 AD (aged 50) Killed in Battle of Adrianople against the Goths
	Gratian FLAVIVS GRATIANVS AVGVSTVS (WEST)	April 18/May 23, 359 AD, Sirmium, Pannonia	Son of Valentinian I, appointed 'junior' Augustus by him in 367, became 'senior' augustus (for the west) after Valentinian's death.	August 4, 367 AD – August 25, 383 AD	16 years and 21 days	August 25, 383 AD (aged 24) Murdered by rebellious army faction
	Valentinian II FLAVIVS VALENTINIANVS INVICTVS AVGVSTVS (WEST)	371 AD, Milan, Italia	Son of Valentinian I, proclaimed emperor by Pannonian army after Valentinian's death; accepted as co-Augustus for the west by Gratian	November 17, 375 AD – May 15, 392 AD	16 years, 5 months and 28 days	May 15, 392 AD (aged 21) Unclear; possibly murdered or committed suicide

Western Emperors[edit]

Theodosian dynasty (392–455)[edit]

Note: Theodosius I was the last person to rule both halves of the Roman Empire, splitting it between his sons Arcadius and Honorius on his death.

Portrait	Name	Birth	Succession	Reign	Time in office	Death
	Theodosius I FLAVIVS THEODOSIVS AVGVSTVS	January 11, 347 AD, Cauca, Hispania	Son-in-law of Valentinian I, appointed as Augustus for the east by Gratian after the death of Valens; became sole 'senior' Augustus after death of Valentinian II	January 1, 379 AD – January 17, 395 AD	16 years and 16 days	January 17, 395 AD (aged 48) Natural causes
	Magnus Maximus FLAVIVS MAGNVS MAXIMVS AVGVSTVS with Flavius Victor FLAVIVS VICTOR AVGVSTVS	c. 335 AD, Hispania	Usurper in the West; legitimized along with his son Victor by Theodosius I as emperors of Britannia and Gaul.	383/384 AD – August 28, 388 AD	4/5 years	August 28, 388 AD (aged 53) Executed by Theodosius I in Aquileia after the Battle of the Save; Victor killed by Arbogast
	Honorius FLAVIVS HONORIVS AVGVSTVS	September 9, 384 AD	Son of Theodosius I; appointed as 'junior' Augustus for the west by Theodosius in 393 (after the death of Valentinian II); became 'senior' Augustus for the west after his father's death	January 23, 393 AD – August 15, 423 AD	30 years, 6 months and 23 days	August 15, 423 AD (aged 38) Natural causes
	Constantine III FLAVIVS CLAVDIVS CONSTANTINVS AVGVSTVS with Constans II CONSTANS AVGVSTVS	?	Usurper who declared himself emperor in the west in 407, recognized as co-emperor by Honorius in 409. Elevated his son Constans II to co-emperor in 409, who was not recognized by Honorius.	407/409 AD - August or September 411 AD	2 years	August or September 411 AD (aged ?) Executed by Constantius III
	Constantius III FLAVIVS CONSTANTIVS AVGVSTVS	?, Naissus, Moesia Superior	Married to Theodosius I's daughter Galla Placidia, elevated to co-Augustus for the west by Honorius	February 8, 421 AD – September 2, 421 AD	6 months and 25 days	September 2, 421 AD (aged ?) Natural causes
	Joannes IOHANNES AVGVSTVS	?	A senior civil servant under Honorius, proclaimed emperor by Castinus; not recognized by the Eastern Empire	August 27, 423 AD – May 425 AD	2 years	June or July 425 AD (aged ?) Defeated in battle by Theodosius II and Valentinian III, captured and executed
	Valentinian III FLAVIVS PLACIDIVS VALENTINIANVS AVGVSTVS	July 2, 419 AD, Ravenna, Italia	Son of Constantius III, appointed Caesar for the west by Theodosius II after the death of Honorius, in opposition to the regime of Joannes; became Augustus for the west after the defeat of Joannes	October 23, 424 AD – March 16, 455 AD	30 years, 4 months and 21 days	March 16, 455 AD (aged 35) Assassinated, possibly at the behest of Petronius Maximus

Last emperors of the Western Empire (455–476)[edit]

Portrait	Name	Birth	Succession	Reign	Time in office	Death
	Petronius Maximus FLAVIVS ANICIVS PETRONIVS MAXIMVS AVGVSTVS	c. 396 AD	Son-in-law of Theodosius II, proclaimed himself emperor with the support of the army, after the death of Valentinian III. Not recognized by the Eastern Empire. He appointed his son Palladius as caesar.	March 17, 455 AD – May 31, 455 AD	2 months and 14 days	May 31, 455 AD (aged 58/59) Murdered, probably stoned to death by the Roman mob
	Avitus EPARCHIVS AVITVS AVGVSTVS	c. 385 AD	Magister militum under Petronius Maximus, proclaimed emperor by the Visigoth king Theoderic II after Petronius's death	July 9, 455 AD – October 17, 456 AD	1 year, 3 months and 8 days	after 17 October 456 AD (aged 71) Deposed by his Magister militum, Ricimer; became bishop of Placentia; murdered at some point afterwards
	Majorian FLAVIVS IVLIVS VALERIVS MAIORIANVS AVGVSTVS	November 420 AD	Proclaimed emperor by his troops. Recognized by the Eastern Empire at the behest of Ricimer.	April 457 AD – August 2, 461 AD	4 years	August 7, 461 AD (aged 40) Deposed and beheaded on the orders of Ricimer.
	Libius Severus FLAVIVS LIBIVS SEVERVS SERPENTIVS AVGVSTVS	?, Lucania, Italia	Appointed emperor by Ricimer. Not recognized by the Eastern Empire.	November 461 AD – August 465 AD	4 years	August 465 AD (aged 45) Probably poisoned by Ricimer
	Anthemius PROCOPIVS ANTHEMIVS AVGVSTVS	c. 420 AD	Son-in-law of Marcian, appointed emperor by Leo I, with the consent of Ricimer.	April 12, 467 AD – July 11, 472 AD	5 years, 2 months and 29 days	July 11, 472 AD (aged 52) Executed by Ricimer or Gundobad (Ricimer's nephew).
	Olybrius FLAVIVS ANICIVS OLYBRIVS AVGVSTVS	c. 420 AD	Son-in-law of Valentinian III; appointed emperor by Ricimer. Not recognized by the Eastern Empire.	July 11, 472 AD – November 2, 472 AD	3 months and 22 days	November 2, 472 AD (aged 41) Natural causes
	Glycerius FLAVIVS GLYCERIVS AVGVSTVS	?	Appointed emperor by Gundobad (Ricimer's successor). Not recognized by the Eastern Empire.	March 473 AD – June 474 AD	1 year	after 480 AD (aged ?) Deposed by Julius Nepos, became Bishop of Salona, time and manner of death unknown
	Julius Nepos FLAVIVS IVLIVS NEPOS AVGVSTVS	c. 430 AD	Nephew-in-law of the eastern emperor Leo I (and nephew of Marcellinus) appointed emperor in opposition to Glycerius	June 474 AD – August 28, 475 AD (in Italy); – spring 480 AD (in Gaul and Dalmatia)	1 year/6 years	480 AD (aged 50) Deposed in Italy by Flavius Orestes, ruled in balance of Western Empire until assassination in 480. Maintained as figurehead in Italy by Odoacer to his death in 480.
	Romulus Augustulus ROMVLVS AVGVSTVS	c. 460 AD[b]	Appointed by his father, Orestes. Not recognized by the Eastern Empire.	October 31, 475 AD – September 4, 476 AD (in Italy)	10 months and 4 days	Unknown. Regarded as emperor more from historical convention than accuracy, his rule never extended beyond portions of the Italian peninsula and was not recognized by Eastern Emperor Zeno. Deposed by Odoacer, who then ruled in the name of Julius Nepos until the latter's death in 480, which formally ended the separate western empire; most likely lived out his life on a private villa in obscurity.

Note: The classical "Roman Empire" is usually said to have ended with the deposition of Romulus Augustulus, with its continuation in the east being referred to by modern scholars as the "Byzantine Empire".

Eastern (Byzantine) Emperors[edit]

Theodosian dynasty (379–457)[edit]

Note: Theodosius I was the last person to rule both halves of the Roman Empire, splitting it between his sons Arcadius and Honorius on his death.

Portrait	Name	Birth	Succession	Reign	Time in office	Death
	Theodosius I FLAVIVS THEODOSIVS AVGVSTVS	January 11, 347 AD, Cauca, Hispania	Son-in-law of Valentinian I, appointed as Augustus for the east by Gratian after the death of Valens; became sole 'senior' Augustus after death of Valentinian II	January 19, 379 AD – January 17, 395 AD	16 years and 16 days	January 17, 395 AD (aged 48) Natural causes
	Arcadius FLAVIVS ARCADIVS AVGVSTVS	c. 377 AD, Hispania	Son of Theodosius I; appointed as 'junior' Augustus for the east by Theodosius in 383; became 'senior' Augustus for the east after his father's death	January 383 AD – May 1, 408 AD	25 years	May 1, 408 AD (aged 31) Natural causes
	Theodosius II FLAVIVS THEODOSIVS AVGVSTVS	April 10, 401 AD, Constantinople	Son of Arcadius; appointed as 'junior' Augustus for the east by Arcadius in 402; became 'senior' Augustus for the east after his father's death	January 402 AD – July 28, 450 AD	48 years	July 28, 450 AD (aged 49) Injuries suffered during a hunting accident
	Marcian FLAVIVS MARCIANVS AVGVSTVS	396, Thrace or Illyria	Nominated as successor (and husband) by Pulcheria, sister of Theodosius II	Summer 450 AD – January 457 AD	7 years	January 457 AD (aged 65) Gout

Leonid dynasty (457–518)[edit]

Name		Reign	Comments
	Leo I the Thracian (Λέων Αʹ ὁ Θρᾷξ) FLAVIVS VALERIVS LEO AVGVSTVS	7 February 457 – 18 January 474	Born in Dacia ca. 400, and of Thracian Bessian origin, Leo became a low-ranking officer and served as an attendant of the Gothic commander-in-chief of the army, Aspar, who chose him as emperor on Marcian's death. He was the first emperor to be crowned by the Patriarch of Constantinople. His reign was marked by the pacification of the Danube frontier and peace with Persia, which allowed him to intervene in the affairs of the western empire, supporting candidates for the throne and dispatching an expedition to recover Carthage from the Vandals in 468. Initially a puppet of Aspar, Leo began promoting the Isaurians as a counterweight to Aspar's Goths, marrying his daughter Ariadne to the Isaurian leader Tarasicodissa (Zeno). With their support, in 471 Aspar was murdered and Gothic power over the army was broken.[11]
	Leo II (Λέων Β) FLAVIVS LEO AVGVSTVS	18 January – 17 November 474	Born ca. 467, he was the grandson of Leo I by Leo's daughter Ariadne and her Isaurian husband, Zeno. Raised to Caesar and then co-emperor in autumn 473, soon after his accession Leo II crowned his father Zeno as co-emperor and effective regent. Died shortly after, possibly poisoned.[12]
	Zeno (Ζήνων) FLAVIVS ZENO AVGVSTVS	17 November 474 – 9 April 491	Born ca. 425 in Isauria, originally named Tarasicodissa. As the leader of Leo I's Isaurian soldiers, he rose to comes domesticorum, married the emperor's daughter Ariadne and took the name Zeno, and played a crucial role in the elimination of Aspar and his Goths. He was named co-emperor by his son on 9 February 474, and became sole ruler upon the latter's death, but had to flee to his native country before Basiliscus in 475, regaining control of the capital in 476. Zeno concluded peace with the Vandals, saw off challenges against him by Illus and Verina, and secured peace in the Balkans by enticing the Ostrogoths under Theodoric the Great to migrate to Italy. Zeno's reign also saw the end of the western line of emperors. His pro-Monophysite stance made him unpopular and his promulgation of the Henotikon resulted in the Acacian Schism with the papacy.[13]
	Basiliscus (Βασιλίσκος) FLAVIVS BASILISCVS AVGVSTVS	9 January 475 – August 476	General and brother-in-law of Leo I, he seized power from Zeno but was again deposed by him. Died in 476/477
	Anastasius I (Ἀναστάσιος) FLAVIVS ANASTASIVS AVGVSTVS	11 April 491 – 9 July 518	Son-in-law of Leo I, born ca. 430 at Dyrrhachium and of Illyrian origin, he was a palace official (silentiarius) when he was chosen as her husband and Emperor by Empress-dowager Ariadne. He was nicknamed "Dikoros", because of his heterochromia. Anastasius reformed the tax system and the Byzantine coinage and proved a frugal ruler, so that by the end of his reign he left a substantial surplus. His Monophysite sympathies led to wideaspread opposition, most notably the Revolt of Vitalian and the Acacian Schism. His reign was also marked by the first Bulgar raids into the Balkans and by a war with Persia over the foundation of Dara. He died childless and became the last Roman Emperor to be deified on his death.[14]

Justinian dynasty (518–602)[edit]

Name		Reign	Comments
	Justin I (Ἰουστῖνος) FLAVIVS IVSTINVS AVGVSTVS	July 518 – 1 August 527	Born c. 450 at Bederiana (Justiniana Prima), Dardania to Thraco-Illyrian parents. Officer and commander of the Excubitors bodyguard under Anastasius I, he was elected by army and people upon the death of Anastasius I.
	Justinian I (Φλάβιος Πέτρος Σαββάτιος Ἰουστινιανός) FLAVIVS PETRVS SABBATIVS IVSTINIANVS AVGVSTVS	1 August 527 – 13/14 November 565	Born in 482/483 at Tauresium (Taor), Dardania. Nephew of Justin I, possibly raised to co-emperor on 1 April 527. Succeeded on Justin I's death. Retained power despite the Nika Riots of 532. Justinian's supreme general, Belisarius, reconquered much of Eastern and Central Europe from the Ostrogoths. Contracted the Bubonic Plague and fell into a coma. Empress Theodora acted as regent during Justinian's coma. Regarded by some as the last Roman emperor.
	Justin II (Φλάβιος Ἰουστῖνος ὁ νεώτερος) FLAVIVS IVSTINVS IVNIOR AVGVSTVS	14 November 565 – 5 October 578	Born c. 520. Nephew of Justinian I, he seized the throne on the death of Justinian I with support of army and Senate. Became insane, hence in 573–574 under the regency of his wife Sophia, and in 574–578 under the regency of Tiberius Constantine.
	Tiberius II Constantine FLAVIVS TIBERIVS CONSTANTINVS AVGVSTVS	5 October 578 – 14 August 582	Born c. 535, commander of the Excubitors, friend and adoptive son of Justin. Was named Caesar and regent in 574. Succeeded on Justin II's death.
	Maurice (Φλάβιος Μαυρίκιος Τιβέριος Αὔγουστος) FLAVIVS MAURICVS TIBERIVS AVGVSTVS	14 August 582 – 22 November 602	Born in 539 at Arabissus, Cappadocia. Became an official and later a general. Married the daughter of Tiberius II and succeeded him upon his death. Named his son Theodosius as co-emperor in 590. Deposed by Phocas and executed on 27 November 602 at Chalcedon.

Name		Reign	Comments
	Phocas (Φωκᾶς) FLAVIVS PHOCAS AVGVSTVS	23 November 602 – 4 October 610	Subaltern in the Balkan army, he led a rebellion that deposed Maurice. Increasingly unpopular and tyrannical, he was deposed and executed by Heraclius.

Heraclian dynasty (610–695)[edit]

Name		Reign	Comments
	Heraclius (Ἡράκλειος) FLAVIVS HERACLIVS AVGVSTVS	5 October 610 – 11 February 641	Born c. 575 as the eldest son of the Exarch of Africa, Heraclius the Elder. Began a revolt against Phocas in 609 and deposed him in October 610. Brought the Byzantine-Sassanid War of 602–628 to successful conclusion but was unable to stop the Muslim conquest of Syria. Officially replaced Latin with Greek as the language of administration and in 629 introduced the new title basileus Rhomaíōn.
	Constantine III (Κωνσταντίνος Γʹ) Formally: "Heraclius New Constantine" (Ἡράκλειος νέος Κωνσταντῖνο) HERACLIVS NOVVS CONSTANTINVS	11 February – 24/26 May 641	Born on 3 May 612 as the eldest son of Heraclius by his first wife Fabia Eudokia. Named co-emperor in 613, he succeeded to throne with his younger brother Heraklonas following the death of Heraclius. Died of tuberculosis, allegedly poisoned by Empress-dowager Martina.
	Heraklonas (Ἡρακλωνᾶς) Formally: "Constantine Heraclius" (Κωνσταντίνος Ἡράκλειος) CONSTANTINVS HERACLIVS	11 February 641 – September 641	Born in 626 to Heraclius' second wife Martina, named co-emperor in 638. Succeeded to throne with Constantine III following the death of Heraclius. Sole emperor after the death of Constantine III, under the regency of Martina, but was forced to name Constans II co-emperor by the army, and was deposed by the Senate in September 641.
	Constans II (Κῶνστας Βʹ) Formally: "Constantine the Bearded" (Κωνσταντίνος ὁ Πωγωνάτος)	September 641 – 15 September 668	Born on 7 November 630, the son of Constantine III. Raised to co-emperor in summer 641 after his father's death, he became sole emperor after the forced abdication of his uncle Heraklonas. Baptized Heraclius, he reigned as Constantine. "Constans" is his nickname. Moved his seat to Syracuse, where he was assassinated, possibly on the orders of Mezezius. He was the first (and until 1423, the only) emperor to visit Rome after the Fall of the Western Roman Empire.
	Constantine IV (Κωνσταντίνος Δʹ ὁ Πωγωνάτος)	15 September 668 – September 685	Born in 652, he succeeded following the murder of his father Constans II. Erroneously called "Constantine the Bearded" by historians through confusion with his father. He repelled the First Arab Siege of Constantinople, and died of dysentery.
	Justinian II (Ἰουστινιανὸς Βʹ ὁ Ῥινότμητος)	September 685 – 695	Born in 669, he was named co-emperor in 681 and became sole emperor upon Constantine IV's death. Deposed by military revolt in 695, mutilated (hence his surname) and exiled to Cherson, whence he recovered his throne in 705.

Twenty Years' Anarchy (695–717)[edit]

Name		Reign	Comments
	Leontios (Λεόντιος)	695–698	General from Isauria, he deposed Justinian II and was overthrown in another revolt in 698. He was executed in February 706.
	Tiberius III (Τιβέριος Γʹ Ἀψίμαρος)	698–705	Admiral of Germanic origin, originally named Apsimar. He rebelled against Leontios after a failed expedition. Reigned under the name of Tiberius until deposed by Justinian II in 705. Executed in February 706.
	Justinian II (Ἰουστινιανὸς Βʹ ὁ Ῥινότμητος) (second reign)	August 705 – December 711	Returned on the throne with Bulgar support. Named son Tiberius as co-emperor in 706. Deposed and killed by military revolt.
	Philippikos Bardanes (Φιλιππικὸς Βαρδάνης)	December 711 – 3 June 713	A general of Armenian origin, he deposed Justinian II and was in turn overthrown by a revolt of the Opsician troops.
	Anastasios II (Ἀναστάσιος Βʹ)	June 713 – November 715	Originally named Artemios. A bureaucrat and secretary under Philippikos, he was raised to the purple by the soldiers who overthrew Philippikos. Deposed by another military revolt, he led an abortive attempt to regain the throne in 718 and was killed.
	Theodosios III (Θεοδόσιος Γʹ)	May 715 – 25 March 717	A fiscal official, he was proclaimed emperor by the rebellious Opsician troops. Entered Constantinople in November 715. Abdicated following the revolt of Leo the Isaurian and became a monk.

Isaurian dynasty (717–802)[edit]

Name		Reign	Comments
	Leo III the Isaurian (Λέων Γʹ ὁ Ἴσαυρος)	25 March 717 – 18 June 741	Born c. 685 in Germanikeia, Commagene, he became a general. Rose in rebellion and secured the throne in spring 717. Repelled the Second Arab Siege of Constantinople and initiated the Byzantine Iconoclasm.
	Constantine V (Κωνσταντίνος Εʹ ὁ Κοπρώνυμος)	18 June 741 – 14 September 775	Born in July 718, the only son of Leo III. Co-emperor since 720, he succeeded upon his father's death. After overcoming the usurpation of Artabasdos, he continued his father's iconoclastic policies and won several victories against the Arabs and the Bulgars. He is given the surname "the Dung-named" by hostile later chroniclers.
	Artabasdos (Ἀρτάβασδος)	June 741/742 – 2 November 743	General and son-in-law of Leo III, Count of the Opsician Theme. Led a revolt that secured Constantinople, but was defeated and deposed by Constantine V, who blinded and tonsured him.
	Leo IV the Khazar (Λέων Δʹ ὁ Χάζαρος)	14 September 775 – 8 September 780	Born on 25 January 750 as the eldest son of Constantine V. Co-emperor since 751, he succeeded upon his father's death.
	Constantine VI (Κωνσταντίνος ΣΤʹ)	8 September 780 – August 797	Born in 771, the only child of Leo IV. Co-emperor in 776, sole emperor upon Leo's death in 780, until 790 under the regency of his mother, Irene of Athens. He was overthrown on Irene's orders, blinded and imprisoned, probably dying of his wounds shortly after.
	Irene of Athens (Εἰρήνη ἡ Αθηναία)	August 797 – 31 October 802	Born c. 752 in Athens, she married Leo IV. Regent for her son Constantine VI in 780–790, she overthrew him in 797 and became empress-regnant. Deposed in a palace coup in 802, she was exiled and died on 9 August 803.

Nikephorian dynasty (802–813)[edit]

Name		Reign	Comments
	Nikephoros I (Νικηφόρος Αʹ ὁ Λογοθέτης)	31 October 802 – 26 July 811	General Logothete (finance minister) under Irene, led initially successful campaigns against the Bulgars but was killed at the Battle of Pliska.
	Staurakios (Σταυράκιος)	26 July 811 – 2 October 811	Only son of Nikephoros I, crowned co-emperor in December 803. Succeeded on his father's death; however, he had been heavily wounded at Pliska and left paralyzed. He was forced to resign, and retired to a monastery where he died soon after.
	Michael I Rangabe (Μιχαὴλ Αʹ Ῥαγγαβέ)	2 October 811 – 22 June 813	Son-in-law of Nikephoros I, he succeeded Staurakios on his abdication. Resigned after the revolt under Leo the Armenian and retired to a monastery, where he died on 11 January 844. Reigned with eldest son Theophylact as co-emperor.

Name		Reign	Comments
	Leo V the Armenian (Λέων Εʹ ὁ Ἀρμένιος)	11 July 813 – 25 December 820	General of Armenian origin, born c. 775. He rebelled against Michael I and became emperor. Appointed his son Symbatios co-emperor under the name of Constantine on Christmas 813. Revived Byzantine Iconoclasm. Murdered by a conspiracy led by Michael the Amorian.

Amorian dynasty (820–867)[edit]

Name		Reign	Comments
	Michael II (Μιχαὴλ Βʹ ὁ ἐξ Ἀμορίου)	25 December 820 – 2 October 829	Born in 770 at Amorium, he became an army officer. A friend of Leo V, he was raised to high office but led the conspiracy that murdered him. Survived the rebellion of Thomas the Slav, lost Crete to the Arabs and faced the beginning of the Muslim conquest of Sicily, reinforced iconoclasm.
	Theophilos (Θεόφιλος)	2 October 829 – 20 January 842	Born in 813, as the only son of Michael II. Co-emperor since 821, he succeeded on his father's death.
	Michael III (Μιχαὴλ Γʹ ὁ Μέθυσος)	20 January 842 – 23 September 867	Born on 19 January 840, he succeeded on Theophilos' death. Under the regency of his mother Theodora until 856, and under the effective control of his uncle Bardas in 862–866. Ended iconoclasm. Murdered by Basil the Macedonian. A pleasure-loving ruler, he was nicknamed "the Drunkard" by later, pro-Basil chroniclers .

Macedonian dynasty (867–1056)[edit]

Name		Reign	Comments
	Basil I the Macedonian (Βασίλειος Αʹ ὁ Μακεδών)	867 – 2 August 886	Born in the Theme of Macedonia ca. 811, he rose in prominence through palace service, becoming a favourite of Michael III. He overthrew Michael and established the Macedonian dynasty. He led successful wars in the East against the Arabs and the Paulicians, and recovered southern Italy for the Empire.
	Leo VI the Wise (Λέων ΣΤʹ ὁ Σοφὸς)	886 – 11 May 912	Born on 19 September 866, likely either son of Basil I or Michael III, Leo was known for his erudition. His reign saw a height in Saracen (Muslim) naval raids, culminating in the Sack of Thessalonica, and was marked by unsuccessful wars against the Bulgarians under Simeon I. He was the last emperor to hold the Consulate.
	Alexander (Ἀλέξανδρος)	11 May 912 – 6 June 913	Son of Basil I, Alexander was born in 870 and raised to co-emperor in 879. Sidelined by Leo VI, Alexander dismissed his brother's principal aides on his accession. He died of exhaustion after a polo game.
	Constantine VII (Κωνσταντίνος Ζʹ ὁ Πορφυρογέννητος)	6 June 913 – 9 November 959	The son of Leo VI, he was born on 17/18 May 905 and raised to co-emperor on 15 May 908. His early reign was dominated by successive regencies, first by his mother, Zoe Karbonopsina, and Patriarch Nicholas Mystikos, and from 919 by the admiral Romanos Lekapenos, who wedded his daughter to Constantine and was crowned senior emperor in 920. Constantine was sidelined during the Lekapenos regime, but asserted his control by deposing Romanos's sons in early 945. His reign was marked by struggles with Sayf al-Dawla in the East and an unsuccessful campaign against Crete, and pro-aristocratic policies that saw a partial reversal of Lekapenos' legislation against the dynatoi. He is notable for his promotion of the "Macedonian Renaissance", sponsoring encyclopaedic works and histories. He was a prolific writer himself, best remembered for the manuals on statecraft (De administrando imperio) and ceremonies (De ceremoniis) he compiled for his son, Romanos II.[15]
	Romanos I Lekapenos (Ῥωμανὸς Αʹ Λεκαπηνὸς)	17 December 920 – 16 December 944	An admiral of lowly origin, Romanos rose to power as a protector of the young Constantine VII against the general Leo Phokas the Elder. After becoming the emperor's father-in-law, he successively assumed higher offices until he crowned himself senior emperor. His reign was marked by the end of warfare with Bulgaria and the great conquests of John Kourkouas in the East. Romanos promoted his sons Christopher, Stephen and Constantine as co-emperors over Constantine VII, but was himself overthrown by the latter two and confined to an island as a monk. He died there on 15 June 948.
	Romanos II (Ῥωμανὸς Βʹ ὁ Πορφυρογέννητος)	9 November 959 – 15 March 963	The only surviving son of Constantine VII, he was born on 15 March 938 and succeeded his father on the latter's death. He ruled until his own death, although the government was led mostly by the eunuch Joseph Bringas. His reign was marked by successful warfare in the East against Sayf al-Dawla and the recovery of Crete by general Nikephoros Phokas.
	Nikephoros II Phokas (Νικηφόρος Βʹ Φωκᾶς)	16 August 963 – 11 December 969	The most successful general of his generation, Nikephoros II was born ca. 912 to the powerful Phokas clan. After the death of Romanos II, he rose to the throne with the support of the army and people as regent for the young emperors Basil II and Constantine VIII, marrying the empress-dowager Theophano. Throughout his reign he led campaigns in the East, conquering much of Syria. He was murdered by his nephew and one-time associate John Tzimiskes.
	John I Tzimiskes (Ἰωάννης Αʹ Κουρκούας ὁ Τσιμισκὴς)	11 December 969 – 10 January 976	Nephew of Nikephoros Phokas, Tzimiskes was born ca. 925. A successful general, he fell out with his uncle and led a conspiracy of disgruntled generals who murdered him. Tzimiskes succeeded Nikephoros as emperor and regent for the young sons of Romanos II. As ruler, Tzimiskes crushed the Rus' in Bulgaria and ended the Bulgarian tsardom before going on to campaign in the East, where he died.
	Basil II (Βασίλειος Βʹ ὁ Βουλγαροκτόνος)	10 January 976 – 15 December 1025	Eldest son of Romanos II, Basil was born in 958. The first decade of his reign was marked by rivalry with the powerful Basil Lekapenos, an unsuccessful war against Bulgaria, and rebellions by generals in Asia Minor. Basil solidified his position through a marriage alliance with Vladimir I of Kiev, and after suppressing the revolts, he embarked on his conquest of Bulgaria. Bulgaria was finally subdued in 1018 after over 20 years of war, interrupted only by sporadic warfare in Syria against the Fatimids. Basil also expanded Byzantine control over most of Armenia. His reign is widely considered as the apogee of medieval Byzantium.
	Constantine VIII (Κωνσταντίνος Ηʹ ὁ Πορφυρογέννητος)	15 December 1025 – 15 November 1028	The second son of Romanos II, Constantine was born in 960 and raised to co-emperor in March 962. During the rule of Basil II, he spent his time in idle pleasure. During his short reign he was an indifferent ruler, easily influenced by his courtiers and suspicious of plots to depose him, especially among the military aristocracy, many of whom were blinded and exiled. On his deathbed, he chose Romanos Argyros as husband for his daughter Zoe.[16]
	Zoe Porphyrogenita (Ζωὴ Πορφυρογέννητη)	15 November 1028 – June 1050	The daughter of Constantine VIII, she succeeded on her father's death, as the only surviving member of the Macedonian dynasty, along with her sister Theodora. Her three husbands, Romanos III (1028–1034), Michael IV (1034–1041) and Constantine IX (1042–1050) ruled alongside her.
	Romanos III Argyros (Ῥωμανὸς Γʹ Ἀργυρὸς)	15 November 1028 – 11 April 1034	Born in 968, the elderly aristocrat Romanos was chosen by Constantine VIII on his deathbed as Zoe's husband and succeeded on the throne after Constantine's death a few days later.
	Michael IV the Paphlagonian (Μιχαὴλ Δʹ ὁ Παφλαγὼν)	11 April 1034 – 10 December 1041	Born in 1010, he became a lover of Zoe even while Romanos III was alive, and succeeded him upon his death as her husband and emperor. Aided by his older brother, the eunuch John the Orphanotrophos, his reign was moderately successful against internal rebellions, but his attempt to recover Sicily failed. He died after a long illness.
	Michael V Kalaphates (Μιχαὴλ Εʹ ὁ Καλαφάτης)	10 December 1041 – 20 April 1042	Born in 1015, he was the nephew and adopted son of Michael IV. During his reign he tried to sideline Zoe, but a popular revolt forced him to restore her as empress on 19 April 1042, along with her sister Theodora. He was deposed the next day, blinded, castrated and tonsured, dying on 24 August 1042.
	Theodora (Θεοδώρα)	19 April 1042 – after 31 August 1056	The younger sister of Zoe, born in 984, she was raised as co-ruler on 19 April 1042. After Zoe married her third husband, Constantine IX, in June 1042, Theodora was again sidelined. After Zoe died in 1050 and Constantine in 1055, Theodora assumed full governance of the Empire and reigned until her death. She nominated Michael VI as her successor.
	Constantine IX Monomachos (Κωνσταντίνος Θʹ Μονομάχος)	11 June 1042 – 7/8 or 11 January 1055	Born ca. 1000 of noble origin, he had an undistinguished life but was exiled to Lesbos by Michael IV, returning when he was chosen as Zoe's third husband. Constantine supported the mercantile classes and favoured the company of intellectuals, thereby alienating the military aristocracy. A pleasure-loving ruler, he lived an extravagant life with his favourite mistresses and endowed a number of monasteries, chiefly the Nea Moni of Chios and the Mangana Monastery. His reign was marked by invasions by the Pechenegs in the Balkans and the Seljuk Turks in the East, the revolts of George Maniakes and Leo Tornikios, and the Great Schism between the patriarchates of Rome and Constantinople.[17]

Name		Reign	Comments
	Michael VI Bringas (Μιχαὴλ ΣΤʹ Βρίγγας, ὁ Στρατιωτικός, ὁ Γέρων)	September 1056 – 31 August 1057	A court bureaucrat and military logothete (hence his first sobriquet). Deposed by military revolt under Isaac Komnenos, he retired to a monastery where he died in 1059.

Name		Reign	Comments
	Isaac I Komnenos (Ἰσαάκιος Αʹ Κομνηνὸς)	5 June 1057 – 22 November 1059	Born c. 1005. A successful general, he rose in revolt leading the eastern armies and was declared Emperor; he was recognized after the abdication of Michael VI on 31 August 1057. He resigned in 1059 and died c. 1061.

Doukid dynasty (1059–1081)[edit]

Name		Reign	Comments
	Constantine X Doukas (Κωνσταντίνος Ιʹ Δούκας)	24 November 1059 – 22 May 1067	Born in 1006, he became a general and close ally of Isaac Komnenos, and succeeded him as emperor on his abdication. Named his sons Michael, Andronikos and Konstantios as co-emperors
	Michael VII Doukas (Μιχαὴλ Ζʹ Δούκας)	22 May 1067 – 24 March 1078	Born in 1050 as the eldest son of Constantine X. Co-emperor since 1059, he succeeded on his father's death. Due to his minority he was under the regency of his mother, Eudokia Makrembolitissa, in 1067–1068, and relegated to junior emperor under her second husband Romanos IV Diogenes in 1068–1071. Senior emperor in 1071–1078, he named his son Constantine co-emperor alongside his brothers. He abdicated before the revolt of Nikephoros Botaneiates, retired to a monastery and died c. 1090.
	Romanos IV Diogenes (Ῥωμανὸς Δʹ Διογένης)	1 January 1068 – 24 October 1071	Born in 1032, a successful general he married empress-dowager Eudokia Makrembolitissa and became senior emperor as guardian of her sons by Constantine X. Deposed by the Doukas partisans after the Battle of Manzikert, blinded in June 1072 and exiled. He died soon after.
	Nikephoros III Botaneiates (Νικηφόρος Γʹ Βοτανειάτης)	31 March 1078 – 4 April 1081	Born in 1001, he was the strategos of the Anatolic Theme. He rebelled against Michael VII and was welcomed into the capital. He weathered several revolts, but was overthrown by the Komnenos clan. He retired to a monastery where he died on 10 December of the same year (1081).

Komnenid dynasty (1081–1185)[edit]

Name		Reign	Comments
	Alexios I Komnenos (Ἀλέξιος Αʹ Κομνηνὸς)	4 April 1081 – 15 August 1118	Born in 1056, a nephew of Isaac I Komnenos. A distinguished general, he overthrew Nikephoros III. His reign was dominated by wars against the Normans and the Seljuk Turks, as well as the arrival of the First Crusade and the establishment of independent Crusader states. He retained Constantine Doukas as co-emperor until 1087 and named his eldest son John co-emperor in 1092.
	John II Komnenos (Ἰωάννης Βʹ Κομνηνὸς)	15 August 1118 – 8 April 1143	Born on 13 September 1087 as the eldest son of Alexios I. Co-emperor since 1092, he succeeded upon his father's death. His reign was focused on wars with the Turks. A popular and frugal ruler, he was known as "John the Good". Named his eldest son Alexios co-emperor in 1122, but he died before him.
	Manuel I Komnenos (Μανουὴλ Αʹ Κομνηνὸς)	1143 – 24 September 1180	Born on 28 November 1118 as the third and youngest son of John II, he was chosen as emperor over his elder brother Isaac by his father on his deathbed. An energetic ruler, he launched campaigns against the Turks, humbled Hungary, achieved supremacy over the Crusader states, and tried unsuccessfully to recover Italy. His extravagance and constant campaigning, however, depleted the Empire's resources.
	Alexios II Komnenos (Ἀλέξιος B' Κομνηνὸς)	24 September 1180 – October 1183	Born on 14 September 1169 as the only son of Manuel I. In 1180–1182 under the regency of his mother, Maria of Antioch. She was overthrown by Andronikos I Komnenos, who became co-emperor and finally had Alexios II deposed and killed.
	Andronikos I Komnenos (Ἀνδρόνικος Αʹ Κομνηνὸς)	1183 – 11 September 1185	Born c. 1118, a nephew of John II by his brother Isaac. A general, he was imprisoned for conspiring against John II, but escaped and spent 15 years in exile in various courts in eastern Europe and the Middle East. He seized the regency from Maria of Antioch in 1182 and subsequently the throne from his nephew Alexios II. An unpopular ruler, he was overthrown and lynched in a popular uprising.

Angelid dynasty (1185–1204)[edit]

Name		Reign	Comments
	Isaac II Angelos (Ἰσαάκιος Βʹ Ἄγγελος)	1185–1195	Born in September 1156, Isaac came to the throne at the head of a popular revolt against Andronikos I. His reign was marked by revolts and wars in the Balkans, especially against a resurgent Bulgaria. He was deposed, blinded and imprisoned by his elder brother, Alexios III.
	Alexios III Angelos (Ἀλέξιος Γʹ Ἄγγελος)	1195 – 17/18 July 1203	Born in 1153, Alexios was the elder brother of Isaac II. His reign was marked by misgovernment and the increasing autonomy of provincial magnates. He was deposed by the Fourth Crusade and fled Constantinople, roaming Greece and Asia Minor, searching for support to regain his throne. He died in Nicaean captivity in 1211.
	Isaac II Angelos (Ἰσαάκιος Βʹ Ἄγγελος) (second reign)	18 July 1203 – 27/28 January 1204	Restored to his throne by the Crusaders, actual rule fell to his son Alexios IV. Due to their failure to deal with the Crusaders' demands, he was deposed by Alexios V Doukas in January 1204 and died on 28 January 1204, perhaps of poison.
	Alexios IV Angelos (Ἀλέξιος Δʹ Ἄγγελος)	1 August 1203 – 27/28 January 1204	Born in 1182, the son of Isaac II. He enlisted the Fourth Crusade to return his father to the throne, and reigned alongside his restored father. Due to their failure to deal with the Crusaders' demands, he was deposed by Alexios V Doukas in January 1204, and was strangled on 8 February.
	Alexios V Doukas (Ἀλέξιος Εʹ Δούκας ὁ Μούρτζουφλος)	5 February 1204 – 13 April 1204	Born in 1140, the son-in-law of Alexios III and a prominent aristocrat, he deposed Isaac II and Alexios IV in a palace coup. He tried to repel the Crusaders, but they captured Constantinople forcing him to flee. He joined the exiled Alexios III, but was later blinded by the latter. Captured by the Crusaders, he was executed in December 1205.

Laskarid dynasty (1204–1261) (Empire of Nicaea)[edit]

Name		Reign	Comments
	Theodore I Laskaris (Θεόδωρος Αʹ Λάσκαρις)	1205– December 1221/1222	Born c. 1174, he rose to prominence as a son-in-law of Alexios III. His brother Constantine Laskaris was elected emperor by the citizens of Constantinople on the day the city fell to the Crusaders; he later fled to Nicaea, where Theodore organized the Greek resistance to the Latins. Proclaimed emperor after Constantine's death in 1205, Theodore was crowned only in 1208. He managed to stop the Latin advance in Asia and to repel Seljuk attacks, establishing the Empire of Nicaea as the strongest of the Greek successor states.
	John III Doukas Vatatzes (Ἰωάννης Γʹ Δούκας Βατάτζης)	15 December 1221/1222– 3 November 1254	Born c. 1192, he became the son-in-law and successor of Theodore I in 1212. A capable ruler and soldier, he expanded his state in Bithynia, Thrace and Macedonia at the expense of the Latin Empire, Bulgaria and the rival Greek state of Epirus.
	Theodore II Laskaris (Θεόδωρος Βʹ Λάσκαρις)	3 November 1254– 18 August 1258	Born in 1221/1222 as the only son of John III, he succeeded on his father's death. His reign was marked by his hostility towards the major houses of the aristocracy, and by his victory against Bulgaria and the subsequent expansion into and Albania.
	John IV Laskaris (Ἰωάννης Δʹ Λάσκαρις)	18 August 1258– 25 December 1261	Born on 25 December 1250 as the only son of Theodore II, he succeeded on his father's death. Due to his minority, the regency was exercised at first by George Mouzalon until his assassination, and then by Michael Palaiologos, who within months was crowned senior emperor. After the recovery of Constantinople in August 1261, Palaiologos sidelined John IV completely, had him blinded and imprisoned. John IV died c. 1305.

Palaiologan dynasty (1261–1453)[edit]

Name		Reign	Comments
	Michael VIII Palaiologos (Μιχαὴλ Ηʹ Παλαιολόγος)	1 January 1259– 11 December 1282	Born in 1223, great-grandson of Alexios III, grandnephew of John III by marriage. Senior emperor alongside John IV in 1259, sole emperor since 25 December 1261.
	Andronikos II Palaiologos (Ἀνδρόνικος Βʹ Παλαιολόγος)	11 December 1282– 24 May 1328	Son of Michael VIII, he was born on 25 March 1259. Named co-emperor in September 1261, crowned in 1272, he succeeded as sole emperor on Michael's death. Favouring monks and intellectuals, he neglected the army, and his reign saw the collapse of the Byzantine position in Asia Minor. He named his son Michael IX co-emperor. In a protracted civil war, he was first forced to recognize his grandson Andronikos III as co-emperor and was then deposed outright. He died on 13 February 1332.
	Andronikos III Palaiologos (Ἀνδρόνικος Γʹ Παλαιολόγος)	24 May 1328– 15 June 1341	Son of Michael IX, he was born on 25 March 1297 and named co-emperor in 1316. Rival emperor since July 1321, he deposed his grandfather Andronikos II in 1328 and ruled as sole emperor until his death. Supported by John Kantakouzenos, his reign saw defeats against the Ottoman emirate but successes in Europe, where Epirus and Thessaly were recovered.
	John V Palaiologos (Ἰωάννης Εʹ Παλαιολόγος)	15 June 1341– 12 August 1376	Only son of Andronikos III, he had not been crowned co-emperor or declared heir at his father's death, a fact which led to the outbreak of a destructive civil war between his regents and his father's closest aide, John VI Kantakouzenos, who was crowned co-emperor. The conflict ended in 1347 with Kantakouzenos recognized as senior emperor, but he was deposed by John V in 1354, during another civil war. Matthew Kantakouzenos, raised by John VI to co-emperor, was also deposed in 1357. John V appealed to the West for aid against the Ottomans, but in 1371 he was forced to recognize Ottoman suzerainty. He was deposed in 1376 by his son Andronikos IV.
	John VI Kantakouzenos (Ἰωάννης ΣΤʹ Καντακουζηνός)	8 February 1347– 4 December 1354	A maternal relative of the Palaiologoi, he was declared co-emperor on 26 October 1341, and was recognized as senior emperor for ten years after the end of the civil war on 8 February 1347. Deposed by John V in 1354, he became a monk, dying on 15 June 1383.
	Andronikos IV Palaiologos (Ἀνδρόνικος Δʹ Παλαιολόγος)	12 August 1376– 1 July 1379	Son of John V and grandson of John VI, he was born on 2 April 1348 and raised to co-emperor c. 1352. He deposed his father on 12 August 1376 and ruled until overthrown in turn in 1379. He was again recognized as co-emperor in 1381 and given Selymbria as an appanage, dying there on 28 June 1385.
	John V Palaiologos (Ἰωάννης Εʹ Παλαιολόγος)	1 July 1379– 14 April 1390	Restored to senior emperor, he was reconciled with Andronikos IV in 1381, re-appointing him co-emperor. He was overthrown again in 1390 by his grandson, John VII.
	John VII Palaiologos (Ἰωάννης Ζʹ Παλαιολόγος)	14 April 1390– 17 September 1390	Son of Andronikos IV, he was born in 1370, and named co-emperor under his father in 1377–79. He usurped the throne from his grandfather John V for five months in 1390, but with Ottoman mediation he was reconciled with John V and his uncle, Manuel II. He held Constantinople against the Ottomans in 1399–1402, and was then given Thessalonica as an appanage, which he governed until his death on 22 September 1408. His son Andronikos V Palaiologos ruled alongside him as co-emperor.
	John V Palaiologos (Ἰωάννης Εʹ Παλαιολόγος)	17 September 1390– 16 February 1391	Restored to senior emperor, he ruled until his death in February 1391.
	Manuel II Palaiologos (Μανουὴλ Βʹ Παλαιολόγος)	16 February 1391– 21 July 1425	Second son of John V, he was born on 27 June 1350. Raised to co-emperor in 1373, he became senior emperor on John V's death and ruled until his death. He journeyed to the West European courts seeking aid against the Turks, and was able to use the Ottoman defeat in the Battle of Ankara to regain some territories and throw off his vassalage to them.
	John VIII Palaiologos (Ἰωάννης Η' Παλαιολόγος)	21 July 1425– 31 October 1448	Eldest surviving son of Manuel II, he was born on 18 December 1392. Raised to co-emperor c. 1416, he succeeded his father on his death. Seeking aid against the resurgent Ottomans, he ratified the Union of the Churches in 1439. He was the last Eastern emperor to visit Rome in 1423.
	Constantine XI Palaiologos (Κωνσταντίνος ΙΑʹ Παλαιολόγος)	6 January 1449– 29 May 1453	The fourth son of Manuel II, he was born on 8 February 1405. As Despot of the Morea since 1428, he distinguished himself in campaigns that annexed the Principality of Achaea and brought the Duchy of Athens under temporary Byzantine suzerainty, but was unable to repel Turkish attacks under Turahan Bey. As the eldest surviving brother, he succeeded John VIII after the latter's death. Facing the designs of the new Ottoman sultan, Mehmed II, on Constantinople, Constantine acknowledged the Union of the Churches and made repeated appeals for help to the West, but in vain. Refusing to surrender the city, he was killed during the final Ottoman attack on 29 May 1453.[18]

See also[edit]

• List of condemned Roman emperors


• List of Roman consuls


• List of Roman dictators


• List of Roman usurpers


• Roman Emperors family tree


• 
  On Weights and Measures –- contains chronology of Roman emperors

Notes[edit]

References[edit]

Citations[edit]

Sources[edit]

Ancient sources

• Tacitus, The Annals of Imperial Rome, Penguin Classics, Michael Grant Publications Ltd, 1971, Reprinted 1985, ISBN 0-14-044060-7
  

Modern sources

• David J. Breeze, Brian Dobson Hadrian's Wall 4th Edition, Penguin, 2000, ISBN 0-14-027182-1
  


• Clive Carpenter, The Guinness Book of Kings Rulers and Statesmen, Guinness Superlatives Ltd, 1978, ISBN 0-900424-46-X
  


• Adrian Goldsworthy, The Fall of the West, Phoenix, 2010, ISBN 978-0-7538-2692-8
  


• Min Lee (editor), Larousse Pockect Guide Kings and Queens, Larousse, 1995 ISBN 0-7523-0032-6
  


• Martha Ross, Rulers and Governments of the World, Vol.1 Earliest Times to 1491, Bowker, 1978, ISBN 0-85935-021-5
  


• Chris Scarre, Brandon Shaw, Chronicle of the Roman Emperors, Thames & Hudson, 1995, Reprinted 2001, ISBN 0-500-05077-5
  


• R. F. Tapsell, Monarchs Rulers Dynasties and Kingdoms of The World, Thames & Hudson, 1981, Reprinted 1987, ISBN 0-500-27337-5
  

External links[edit]

Wikimedia Commons has media related to Roman Emperors.

• 
  Biographies of Roman Emperors.


• List of the Roman Emperors 27 BC – 395 AD


• Portraits and fact files


• 
  The Roman Law Library by Yves Lassard and Alexandr Koptev.


• Timeline of Roman Emperors and Empresses