List of Roman Emperors This is a list of Roman Emperors with the dates they controlled the Roman Empire. (Note that, contrary to popular belief, Julius Caesar was never Emperor (princeps), although he was named dictator for life in 45 BC (but was not the first Roman to hold that title) and was regarded as such by Roman historians. On the other hand, the name Caesar became the family name of the first dynasty and was effectively treated as a title, a practice which continued throughout the Empire. Similarly, Suetonius wrote of The Twelve Caesars (including the Flavians) so some sense of continuity was evidently felt.) For the worship of the Roman Emperor as a god, see imperial cult. For a simplified list see: Concise List of Roman Emperors italics: claimant who cannot be conisdered to have ruled or held power over part of the empire only bold italics: nickname by which the individual is commonly known The Principate/Julio-Claudian dynasty

Reign Common name Personal name & Title at birth/ on eve of accession Imperial name Notes 16 January 27 BC to 19 August AD 14 Augustus GAIVS OCTAVIANVS IMPERATOR CAESAR DIVI FILIVS IMPERATOR CAESAR DIVI FILIVS AVGVSTVS 12BC: Pontifex Maximus 19 August 14 to 16 March 37 Tiberius TIBERIVS CLAVDIVS NERO TIBERIVS IVLIVS CAESAR TIBERIVS CAESAR AVGVSTVS AD15: Pontifex Maximus 18 March 37 to 24 January 41 Caligula GAIVS IVLIVS CAESAR GERMANICVS GAIVS CAESAR AVGVSTVS GERMANICVS CALIGVLA GAIVS CAESAR AVGVSTVS GERMANICVS Nickname Caligula, (Little-boots); AD37: Pontifex Maximus, Pater Patriae; Assassinated 24 January 41 to 13 October 54 Claudius TIBERIVS CLAVDIVS DRVSVS TIBERIVS CLAVDIVS DRVSVS NERO GERMANICVS TIBERIVS CLAVDIVS CAESAR AVGVSTVS GERMANICVS PONTIFEX MAXIMVS AD42: Pater Patriae; Assassinated by poisoning October 54 to 11 June 68 Nero LVCIVS DOMITIVS AHENOBARBVS NERO CLAVDIVS CAESAR DRVSVS GERMANICVS NERO CLAVDIVS CAESAR AVGVSTVS GERMANICVS AD55: Pontifex Maximus; later Pater Patriae; Committed suicide Year of the four emperors Reign Common name Personal name & Title at birth/ on eve of accession Imperial name Notes 8 June 68 to 15 January 69 Galba SERVIVS SVLPICIVS GALBA SERVIVS GALBA IMPERATOR CAESAR AVGVSTVS Murdered by Otho; see: Year of the four emperors 15 January 69 to 16 April 69 Otho MARCVS SALVIVS OTHO IMPERATOR MARCVS OTHO CAESAR AVGVSTVS Committed suicide; see: Year of the four emperors 2 January 69 to 20 December 69 Vitellius AVLVS VITELLIVS AVLVS VITELLIVS GERMANICVS IMPERATOR AVGVSTVS Co-emperor; murdered in the Forum; see: Year of the four emperors Flavian Dynasty Reign Common name Personal name & Title at birth/ on eve of accession Imperial name Notes 1 July 69 to 24 June 79 Vespasian TITVS FLAVIVS VESPASIANVS IMPERATOR VESPASIANVS CAESAR AVGVSTVS AD70: Pontifex Maximus Pater Patriae co-emperor; see: Year of the four emperors 24 June 79 to 13 September 81 Titus Flavius TITVS FLAVIVS VESPASIANVS TITVS CAESAR VESPASIANVS IMPERATOR TITVS CAESAR VESPASIANVS AVGVSTVS AD70: Pontifex Maximus Pater Patriae from August 69 IMPERATOR TITVS CAESAR VESPASIANVS AVGVSTVS 14 September 81 to 18 September 96 Domitian TITVS FLAVIVS DOMITIANVS CAESAR DOMITIANVS IMPERATOR CAESAR DOMITIANVS AVGVSTVS, PONTIFEX MAXIMVS PATER PATRIAE lateAD83: Germanicus; assassinated Nervan-Antonian dynasty Reign Common name Personal name & Title at birth/ on eve of accession Imperial name Notes 18 September 96 to 27 January 98 Nerva MARCVS COCCEIVS NERVA IMPERATOR NERVA CAESAR AVGVSTVS, PATER PATRIAE   28 January 98 to 7 August 117 Trajan MARCVS VLPIVS NERVA TRAIANVS MARCVS VLPIVS NERVA TRAIANVS GERMANICVS IMPERATOR CAESAR DIVI NERVAE FILIVS NERVA TRAIANVS GERMANICVS AVGVSTVS AD98: Pater Patriae; 102: Dacicus; 114: Parthicus; Aug/Sep 114: Optimus 11 August 117 to 10 July 138 Hadrian PVBLIVS AELIVS HADRIANVS PVBLIVS AELIVS TRAIANVS HADRIANVS IMPERATOR CAESAR TRAIANVS HADRIANVS AVGVSTVS PONTIFEX MAXVMVS   10 July 138 to 7 March 161 Antoninus Pius TITVS AVRELIVS FVLVIVS BOINONIVS ARRIVS ANTONINVS IMPERATOR TIRVS AELIVS CAESAR ANTONINVS IMPERATOR CAESAR TITVS AELIVS HADRIANVS ANTONINVS AVGVSTVS PONTIFEX MAXIMVS post7 March 161: Pius; 139: Pater Patriae 143 Acclaimed emperor a second time 7 March 161 to 17 March 180 Marcus Aurelius MARCVS ANNIVS VERVS AVRELIVS CAESAR AVGVSTI PII FILIVS IMPERATOR CAESAR MARCVS AVRELIVS ANTONINVS AVGVSTVS PONTIFEX MAXIMVS co-emperor with Lucius Verus to March 169; 164: Armeniacus Medicus Parthicus Maximus; 166: Pater Patriae; 172: Germanicus; 175: Sarmaticus 7 March 161 to March 169 Lucius Verus LVCIVS CEIONIVS COMMODVS LVCIVS AELIVS AVRELIVS COMMODVS IMPERATOR CAESAR LVCIVS AVRELIVS VERVS AVGVSTVS Co-emperor with Marcus Aurelius164: Armeniacus; 165: Parthicus Maximus; 166: Medicus, Pater Patriae 175 to 175 Avidius Cassius GAIVS AVIDIVS CASSIVS   Usurper; proclaimed emperor: ruled in Egypt and Syria; murdered by a centurion 177 to 31 December 192 Commodus LVCIVS AVRELIVS COMMODVS ANTONINVS LVCIVS AVRELIVS COMMODVS CAESAR ANTONINVS IMPERATOR CAESAR LVCIVS AVRELIVS COMMODVS AVGVSTVS PATER PATRIAE Co-emperor with Marcus Aurelius to 17 March 180; Murdered: strangled by a wrestler from 180 IMPERATOR CAESAR LVCIVS AVRELIVS COMMODVS ANTONINVS AVGVSTVS PONTIFEX MAXIMVS PATER PATRIAE Sole emperor Severan Dynasty, African, Asian and Syrian Emperors Reign Common name Personal name & Title at birth/ on eve of accession Imperial name Notes 1 January 193 to 28 March 193 Pertinax PVBLIVS HELVIVS PERTINAX IMPERATOR CAESAR PVBLIVS HELVIVS PERTINAX AVGVSTVS recognized as emperor by Septimius Severus; murdered by soldiers on the Palatine 28 March 193 to 1 June 193 Didius Julianus MARCVS DIDIVS SEVERVS IVLIANVS IMPERATOR CAESAR MARCVS DIDIVS SEVERVS IVLIANVS AVGVSTVS Sentenced to death by the Senate; murdered on the Palatine 9 April 193 to 4 February 211 Septimius Severus LVCIVS SEPTIMVS SEVERVS IMPERATOR CAESAR LVCIVS SEPTIMVS SEVERVS PERTINAX AVGVSTVS PROCONSVL 9 June 193: Pontifex Maximus; late193: Pater Patriae; 195: Divi Marci Pii filius Divi Commodi Frater; Pius; Arabicus, Adiabenicus; 198: Parthicus Maximus; 209/210: Britannicus Maximus 193 to 194/195 Pescennius Niger GAIVS PESCENNIVS NIGER   Claimant: emperor in Syria 193/195 to 197 Clodius Albinus DECIMVS CLODIVS SEPTIMIVS ALBINVS   Claimant: emperor in Britain 198 to 4 February 211 Caracalla LVCIVS SEPTIMIVS BASSIANVS CARACALLA IMPERATOR CAESAR MARCVS AVRELIVS SEVERVS ANTONINVS PIVS AVGVSTVS 199: Pater Patriae; 200: Pius Felix; 209/210: Britannicus Maximus 4 February 211 to 8 February 217 IMPERATOR CAESAR MARCVS AVRELIVS ANTONINVS AVGVSTVS PATER PATRIAE BRITANNICVS MAXIMVS PROCONSVL 213: Germanicus Maximus; Murdered by Macrinus 209 to 4 February 211 Geta PVBLIVS SEPTIMVS GETA   Murdered by Caracalla 4 February 211 to December 211 IMPERATOR CAESAR PVBLIVS SEPTIMIVS GETA AVGVSTVS 11 April 217 to June 218 Macrinus MARCVS OPELLIVS MACRINVS IMPERATOR MARCVS OPELLIVS SEVERVS MACRINVS AVGVSTVS PIVS FELIX PROCONSVL ?June 217: Pater Patriae; Pontifex Maximus; Executed May 217 to June 218 Diadumenian MARCVS OPELLIVS DIADVMENIANVS IMPERATOR MARCVS OPELLIVS ANTONINVS DIADVMENIANVS CAESAR SEVERVS Executed June 218 to 222 Heliogabalus VARIVS AVITVS BASSIANVS MARCVS AVRELIVS ANTONINVS ELAGABALVS IMPERATOR MARCVS AVRELIVS ANTONINVS PIVS FELIX AVGVSTVS PROCONSVL July 218: Pater Patriae, Pontifex Maximus; 220: Sacerdos Amplissimus Dei Invicti Solis Elagabali Assassinated 13 March 222 to ?March 235 Alexander Severus BASSIANVS ALEXIANVS IMPERATOR CAESAR MARCVS AVRELIVS SEVERVS ALEXANDER PIVS FELIX AVGVSTVS Pontifex Maximus Assassinated Rulers during the Crisis of the Third Century Reign Common name Personal name & Title at birth/ on eve of accession Imperial name Notes February/March 235 to March/April 238 Maximinus Thrax GAIVS IVLIVS VERVS MAXIMINVS THRAX IMPERATOR CAESAR GAIVS JVLIVS VERVS MAXIMINVS PIVS FELIX INVICTVS AVGVSTVS Murdered by troops earlyJanuary/March 238 to lateJanuary/April 238 Gordian I MARCVS ANTONIVS GORDIANVS IMPERATOR CAESAR MARCVS ANTONIVS GORDIANVS SEMPRONIANVS AFRICANVS Committed suicide earlyJanuary March 238 to lateJanuary/April 238 Gordian II NARCYS ANTONIVS GORDIANVS IMPERATOR CAESAR MARCVS ANTONIVS GORDIANVS SEMPRONIANVS AFRICANVS Killed in battle earlyFebruary 238 to earlyMay 238 Pupienus Maximus MARCVS CLODIVS PVPIENVS MAXIMVS IMPERATOR CAESAR MARCVS CLODIVS PVPIENVS MAXIMVS AVGVSTVS Murdered by the Praetorians earlyFebruary 238 to earlyMay 238 Balbinus DECIMVS CAELIVS ANTONIVS BALBINVS DECIMVS CAELIVS CALVINVS BALBINVS   Murdered by the Praetorians May 238 to February 244 Gordian III MARCVS ANTONIVS GORDIANVS MARCVS ANTONIVS GORDIANVS PIVS IMPERATOR CAESAR MARCVS ANTONIVS GORDIANVS PIVS FELIX AVGVSTVS Murdered 240 to 240 Sabinianus     Proclaimed himself emperor; defeated in battle February 244 to September/October 249 Philip the Arab MARCVS IVLIVS PHILLIPVS IMPERATOR CAESAR MARCVS IVLIVS PHILLIPVS PIVS FELIX INVICTVS AVGVSTVS Killed in battle by Decius 248 to 248 Pacantius TIBERIVS CLAVDIVS MARINVS PACATIANVS   Proclaimed himself emperor; murdered by his own soldiers 248 to 248 Jotapian MARCVS FVLVIVS RVFVS IOTAPIANVS   Claimant 248 to 248 Silbannacus     Usurper 249 to June 251 Decius GAIVS MESSIVS QVINTVS TRAIANVS DECIVS IMPERATOR CAESAR GAIVS MESSIVS QVINTVS TRAIANVS DECIVS PIVS FELIX INVICTVS AVGVSTVS Killed in battle 249 to 252 Priscus GAIVS JVLIVS PRISCVS   Proclaimed himself emperor in the Eastern provinces 250 to 250 Licinianus IVLIVS VALENS LICINIANVS   Claimant early251 to 1 July 251 Herennius Etruscus QVINTVS HERENNIVS ETRVSCVS MESSIVS DECIVS   Killed in battle 251 to 251 Hostilian HOSTILIANVS HOSTILIANVS   June 251 to August 253 Gallus GAIVS VIBIVS TREBONIANVS GALLVS IMPERATOR CAESAR GAIVS VIBIVS TREBONIANVS GALLVS PIVS FELIX INVICTVS AVGVSTVS Murdered by his own soldiers August 253 to October 253 Aemilian MARCVS AEMILIVS AEMILIANVS IMPERATOR CAESAR MARCVS AEMILIVS AEMILIANVS PIVS FELIX INVICTVS AVGVSTVS Murdered by his own soldiers 253 to June 260 Valerian PVBLIVS LICINIVS VALERIANVS IMPERATOR CAESAR PVBLIVS LICINIVS VALERIANVS PIVS FELIX INVICTVS AVGVSTVS Co-emperor with Gallienus; captured by Persians: died in captivity 253 to September 268 Gallienus PVBLIVS LICINIVS EGNATIVS GALLIENVS IMPERATOR CAESAR PVBLIVS LICINIVS EGNATIVS GALLIENVS PIVS FELIX INVICTVS AVGVSTVS Co-emperor with Valerian 253 to 260; murdered 258 or June 260 Ingenuus     Proclaimed himself emperor 260 Regalianus     Proclaimed emperor 260 to 261 Macrianus Major FVLVIVS MACRIANVS   Proclaimed emperor; defeated and killed in battle 260 to 261 Macrianus Minor TITVS FVLVIVS IVNIVS MACRIANVS   Proclaimed emperor; defeated and killed in battle 260 to 261 Quietus TITVS FVLVIVS IVNIVS QVIETVS   Claimant 261 to 261 or 262 Mussius Aemilianus LVCIVS MVSSIVS AEMILIANVS   Proclaimed emperor 268 to 268 Aureolus     Proclaimed himself emperor; surrendered to Claudius II Gothicus Illyrian Emperors Reign Common name Personal name & Title at birth/ on eve of accession Imperial name Notes 268 to August 270 Claudius II Gothicus MARCVS AVRELIVS VALERIVS CLAVDIVS IMPERATOR CAESAR MARCVS AVRELIVS CLAVDIVS PIVS FELIX INVICTVS AVGVSTVS Died of plague August 270 to September 270 Quintillus MARCVS AVRELIVS QVINTILLVS IMPERATOR CAESAR MARCVS AVRELIVS CLAVDIVS QVINTILLVS INVICTVS PIVS FELIX AVGVSTVS Co-emperor with Aurelian; committed suicide August 270 to 275 Aurelian LVCIVS DOMITIVS AVRELIANVS IMPERATOR CAESAR LVCIVS DOMITIVS AVRELIANVS PIVS FELIX INVICTVS AVGVSTVS Co-emperor with Quintillus; murdered by the Praetorian Guard 271 to 271 Septimius     Proclaimed emperor in Dalmatia; killed by his own soldiers November/December 275 to July 276 Tacitus MARCVS CLAVDIVS TACITVS IMPERATOR CAESAR MARCVS CLAVDIVS TACITVS PIVS FELIX AVGVSTVS Murdered July 276 to September 276 Florianus MARCVS ANNIVS FLORIANVS PIVS IMPERATOR CAESAR MARCVS ANNIVS FLORIANVS PIVS FELIX AVGVSTVS Murdered July 276 to lateSeptember 282 Probus MARCVS AVRELIVS EQVITIVS PROBVS IMPERATOR CAESAR MARCVS AVRELIVS PROBVS PIVS FELIX INVICTVS AVGVSTVS Murdered by his own soldiers 280 Saturninus IVLIVS SATVRNINVS   Claimant: forced by his soldiers; proclaimed himself emperor; killed by his soldiers 280 Proculus     Claimant: acceding to the request of the people of Lugdunum; killed by Probus 280 Bonosus GALLVS QVINTVS BONOSVS   Proclaimed himself emperor; defeated by Probus and committed suicide September 282 to July/August 283 Carus MARCVS AVRELIVS NVMERIVS CARVS IMPERATOR CAESAR MARCVS AVRELIVS CARVS PIVS FELIX INVICTVS AVGVSTVS Uncertain cause of death; disease, lightning injury, a wound received in battle against the Huns and murder by the Praetorian Guard have all been suggested spring 283 to summer 285 Carinus MARCVS AVRELIVS CARINVS IMPERATOR CAESAR MARCVS AVRELIVS CARINVS PIVS FELIX INVICTVS AVGVSTVS Co-emperor with Numerian; Murdered July/August 283 to November 284 Numerian MARCVS AVRELIVS NVMERIVS NVMERIANVS IMPERATOR CAESAR MARCVS AVRELIVS NVMERIANVS PIVS FELIX AVGVSTVS Co-emperor with Carinus Tetrarchy 'Collegiate Emperors' of the Constantine Dynasty Reign Common name Personal name & Title at birth/ on eve of accession Imperial name Notes 20 November 284 to 1 May 305 Diocletian DIOCLES (full name not known) GAIVS AVRELIVS VALERIVS DIOCLETIANVS IOVIVS IMPERATOR CAESAR GAIVS AVRELIVS VALERIVS DIOCLETIANVS PIVS FELIX INVICTVS AVGVSTVS PONTIFEX MAXIMVS PATER PATRIAE PROCONSVL Co-emperor with Maximian; 285: Germanicus Maximus, Sarmaticus Maximus; 286: Iovius; 287: Germanicus Maximus; 295: Persicus Maximus; 297: Britannicus Maximus, Carpicus Maximus; 298: Armenicus Maximus, Medicus Maximus, Adiabenicus Maximus Abdicated 1 April 286 to 1 May 305 Maximian MAXIMIANVS (full name not known) MARCVS AVRELIVS VALERIVS MAXIMIANVS HERCVLIVS IMPERATOR CAESAR GAIVS AVRELIVS VALERIVS MAXIMIANVS PIVS FELIX INVICTVS AVGVSTVS co-emperor with Diocletian; 286: Germanicus Maximus, Sarmaticus Maximus; 287: Iovius; 288: Germanicus Maximus; 294: Persicus Maximus; 298: Britannicus Maximus, Carpicus Maximus; 299: Armenicus Maximus, Medicus Maximus, Adiabenicus Maximus; Forced to abdicate 1 May 305 to 25 July 306 Constantius I Chlorus FLAVIVS VALERIVS CONSTANTIVS CHLORVS IMPERATOR CAESAR GAIVS FLAVIVS VALERIVS CONSTANTIVS AVGVSTVS   1 May 305 to May 311 Galerius CAIVS GALERIVS VALERIVS MAXIMIANVS IMPERATOR CAESAR GALERIVS VALERIVS MAXIMIANVS PIVS FELIX INVICTVS AVGVSTVS co-emperor with Severus II August 306 to 16 September 307 Severus II FLAVIVS VALERIVS SEVERVS IMPERATOR SEVERVS PIVS FELIX AVGVSTVS co-emperor with Galerius 28 October 306 to 28 October 312 Maxentius MARCVS AVRELIVS VALERIVS MAXENTIVS MARCVS AVRELIVS VALERIVS MAXENTIVS PIVS FELIX INVICTVS AVGVSTVS Drowned on order of Constantine I The Great 307 to 308 Maximian MAXIMIANVS (full name not known) MARCVS AVRELIVS VALERIVS MAXIMIANVS HERCVLIVS IMPERATOR CAESAR GAIVS AVRELIVS VALERIVS MAXIMIANVS PIVS FELIX INVICTVS AVGVSTVS PONTIFEX MAXIMVS HERCVLIVS GERMANICVS MAXIMVS SARMATICVS MAXIMVS IOVIVS GERMANICVS MAXIMVS PERSICVS MAXIMVS BRITANNICVS MAXIMVS CARPICVS MAXIMVS ARMENICVS MAXIMVS MEDICVS MAXIMVS ADIABENICVS MAXIMVS Abdicated de jure: 307, de facto 312 to 22 May 337 Constantine I The Great GAIVS FLAVIVS VALERIVS CONSTANTINVS IMPERATOR CAESAR FLAVIVS CONSTANTINVS PIVS FELIX INVICTVS AVGVSTVS PONTIFEX MAXIMVS PATER PATRIAE PROCONSVL 307: Germanicus Maximus; 312: Maximus; 323: Sarmaticus Maximus; 324: Victor substituting Invictus; 328: Gothicus Maximus; 336:Dacicus Maximus 308 Domitius Alexander LVCIVS DOMITIVS ALEXANDER   Proclaimed himself emperor 11 November 308 to 19 December 324 Licinius VALERIVS LICINIANVS LICINIVS IMPERATOR CAESAR GAIVS VALERIVS LICINIVS PIVS FELIX INVICTVS AVGVSTVS Co-emperor; abdicated; (executed early 325) 1 May 310 to July/August 313 Maximinus Daia DAIA MAXIMINVS GAIVS GALERIVS VALERIVS IMPERATOR CAESAR GALERIVS VALERIVS MAXIMINVS PIVS FELIX AVGVSTVS Co-emperor; committed suicide 337 to 340 Constantine II FLAVIVS CLAVDIVS CONSTANTINVS IMPERATOR CAESAR FLAVIVS VALERIVS CONSTANTINVS AVGVSTVS Co-emperor; killed in battle 337 to 361 Constantius II FLAVIVS IVLIVS CONSTANTIVS IMPERATOR CAESAR FLAVIVS IVLIVS CONSTANTINVS AVGVSTVS Co-emperor 337 to 350 Constans I FLAVIVS IVLIVS CONSTANS IMPERATOR CAESAR FLAVIVS IVLIVS CONSTANS AVGVSTVS Co-emperor; killed by Magnentius January 350 to 11 August 353 Magnentius FLAVIVS MAGNVS MAGNENTIVS IMPERATOR CAESAR FLAVIVS MAGNVS MAGENTIVS AVGVSTVS Co-ruler; committed suicide c.350 Vetriano     Proclaimed himself emperor c.350 Nepotianus     Proclaimed himself emperor November 361 to June 363 Julian the Apostate FLAVIVS CLAVDIVS IVLIANVS IMPERATOR CAESAR FLAVIVS CLAVDIVS IVLIANVS AVGVSTVS Killed in battle 363 to 17 February 364 Jovian FLAVIVS IOVIANVS IMPERATOR CAESAR FLAVIVS IOVIANVS AVGVSTVS Died accidentally Valentinian Dynasty Reign Common name Personal name & Title at birth/ on eve of accession Imperial name Notes 26 February 364 to 17 November 375 Valentinian I FLAVIVS VALENTINIANVS IMPERATOR CAESAR FLAVIVS VALENTINIANVS AVGVSTVS   24 August 367 to 383 Gratian FLAVIVS GRATIANVS IMPERATOR CAESAR FLAVIVS GRATIANVS AVGVSTVS Assassinated 375 to 385 Valentinian II FLAVIVS VALENTINIANVS IMPERATOR CAESAR FLAVIVS VALENTINIANVS AVGVSTVS Deposed; died in suspicious circumstances 383 to 388 Magnus Maximus MAGNVS MAXIMVS   Rival in the west; deposed and executed c.386 to 388 Flavius Victor FLAVIVS VICTOR   Fate uncertain 392 to 394 Eugenius FLAVIVS EVGENIVS   Usurper in the west; killed in battle Theodosian Dynasty Reign Common name Personal name & Title at birth/ on eve of accession Imperial name Notes 388 to 17 January 395 Theodosius I the Great FLAVIVS THEODOSIVS IMPERATOR CAESAR FLAVIVS THEODOSIVS AVGVSTVS Co-emperor; emperor in the east from 379 23 January 393 to 395 Flavius Augustus Honorius FLAVIVS HONORIVS   Becoming emperor in the west Western Empire Reign Common name Personal name & Title at birth/ on eve of accession Imperial name Notes 395 to 15 August 423 Honorius FLAVIVS AVGVSTVS HONORIVS   Co-emperor with Constantius III (421) 409 to 410 Priscus Attalus     Claimant 414 to 415 Priscus Attalus     Claimant 409 to 411 Constantine III     Claimant 411 to 412 Jovinus     Claimant 421 to 421 Constantius III     Co-emperor with Honorius 423 to 425 Joannes IOANNES   Claimant 425 to 16 March 455 Valentinian III FLAVIVS PLACIDVS VALENTINIANVS     17 March 455 to 31 May 455 Petronius Maximus FLAVIVS PETRONIVS MAXIMVS     June 455 to 17 October 456 Avitus MARCVS MAECILIVS FLAVIVS EPARCHIVS AVITVS     457 to 2 August 461 Majorian IVLIVS VALERIVS MAIORIANVS   Abdicated 461 to 465 Libius Severus LIBIVS SEVERVS     12 April 467 to 11 July 472 Anthemius PROCOPIVS ANTHEMIVS   Executed July 472 to 2 November 472 Olybrius ANCIVS OLYBRIVS     5 March 473 to June 474 Glycerius     Abdicated June 474 to August 475 Julius Nepos     Emperor in the West until 475, Emperor in Dalmatia 477 to May 480; fled; murdered 31 October 475 to August 476 Romulus Augustus Romulus Augustulus ROMVLVS AVGVSTVS   Deposed by Odoacer; fate unknown Eastern Empire Reign Common name Personal name & Title at birth/ on eve of accession Imperial name Notes 26 February 364 to 17 November 375 Valentinian I FLAVIVS VALENTINIANVS IMPERATOR CAESAR FLAVIVS VALENTINIANVS AVGVSTVS Co-emperor with Valens 364 to 378 28 March 365 to 9 August 366 Valens FLAVIVS IVLIVS VALENS IMPERATOR CAESAR FLAVIVS IVLIVS VALENS AVGVSTVS Killed in battle September 365 to 27 May 366 Procopius   PROCOPIVS Usurper; executed by Valens 24 August 367 to 383 Gratianus FLAVIVS GRATIANVS IMPERATOR CAESAR FLAVIVS GRATIANVS co-emperor with Valentinian II (375 to 392); assassinated 19 January 379 to 17 January 395 Theodosius I The Great FLAVIVS THEODOSIVS IMPERATOR CAESAR FLAVIVS THEODOSIVS AVGVSTVS Co-emperor in the west from 388 383 to January 395 Arcadius FLAVIVS ARCADIVS IMPERATOR CAESAR FLAVIVS ARCADIVS AVGVSTVS Becoming Byzantine Emperor January 395 Gallic Empire 260 to 274 Reign Common name Personal name & Title at birth/ on eve of accession Imperial name Notes 260 to 268 Postumus MARCVS CASSIANIVS LATINIVS POSTVMVS IMPERATOR CAESAR MARCVS CASSIANVS LATINIVS POSTVMVS PIVS FELIX INVICTVS AVGVSTVS   269 to 269 Laelianus VLPIVS CORNELIVS LAELIANVS IMPERATOR CAESAR GAIVS VLPIVS CORNELIVS LAELIANVS PIVS FELIX AVGVSTVS   269 to 269 Marius MARCVS AVRELIVS MARIVS IMPERATOR CAESAR MARCVS AVRELIVS MARIVS PIVS FELIX AVGVSTVS   269 to 271 Victorinus MARCVS PIAVONIVS VICTORINVS IMPERATOR CAESAR MARCVS PIAVONIVS VICTORINVS PIVS FELIX INVICTVS AVGVSTVS   270 to 271 Domitianus     Proclaimed emperor of the Gallic Empire 271 to 274 Tetricus I CAIVS PIVS ESVVIVS TETRICVS IMPERATOR CAESAR GAIVS PIVS ESVVIVS TETRICVS FELIX INVICTVS AVGVSTVS   Britannic Empire 286 to 297 Reign Common name Personal name & Title at birth/ on eve of accession Imperial name Notes 286 to 293 Carausius MARCVS AVRELIVS MAVSAEVS     293 to 297 Allectus not known not known   For continuation, see:- list of Barbarian kings of Italy Eastern Empire Arcadius (395 - 408) Theodosius II (408 - 450) Marcian (450 - 457) Leo I (457 - 474) Leo II (474) Zeno (474 - 491) Basiliscus (475 - 476) Zeno (restored) (476 - 491) continuation: see list of Byzantine Emperors see also Gallic Empire; Roman usurper External links There are good biographies of most of the Roman Emperors in De Imperatoribus Romanis. 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