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Rulers of Rome (27 bc - 491 ad), Historical
(from Augustus until the fall of the West Roman Empire)
 

This list attempts to give historical review of the Emperors, Caesars and the Usurpers as ruled the empire (though it is not aways clear where the usurper stops and the emperor begins). Some of my decisions are arbitary but they were done with a clear conscience.

Used abbreviations : a = augustus, c = caesar, d = deified, e = eastern empire, f = imperial friend / family, g =gallic empire, r = rex, u = usurper, wi = wife of the above emperor, w=western empire.


Period Popular Name Full Name
Julio Claudian Dynasty
27bc-14 Augustus (D) A Caius Julius Caesar Octavianus
  14-37 Tiberius A Tiberius Claudius Nero
  37-41 Caligula A Gaius Caesar Germanicus
  41-54 Claudius (D) A Tiberius Claudius Drusus Nero Germanicus
  54-68 Nero A

Lucius Domitius Ahenobarbus

upon adoption Nero Claudius Caesar Drusus Germanicus

Civil War
69 Galba A Servius Sulpicius Galba
69 Otho A Marcus Salvius Otho
69 Vitellius A Aulus Vitellius
Flavian Dynasty
  69-79 Vespasianus (D) A Titus Flavius Vespasianus
  79-81 Titus (D) A Titus Flavius Vespasianus
  81-96 Domitianus (D) A Titus Flavius Domitianus
Adoptive Emperors
  96-98 Nerva (D) A Marcus Cocceius Nerva
  98-117 Trajanus (D) A Marcus Ulpius Trajanus
117-138 Hadrianus (D) A Publius Aelius Hadrianus
136-138

Aelius

C

Lucius Ceionius Commodus

upon adoption Lucius Aelius Caesar

138-161 Antoninus Pius (D) A Titus Aurelius Fulvua Boionius Arrius Antoninus
later as : Titus Aelius Hadrianus Antoninus

161-180 Marcus Aurelius (D) A

Marcus Annius Verus

upon adoption Marcus Aelius Aurelius Verus

161-169 Lucius Verus (D) A

Lucius Ceionius Commodus,

later known as Lucius Aurelius Verus

177-192 Commodus (D) A Lucius Aelius Aurelius Commodus
Interlude
193 Didius Julianus A Marcus Didius Julianus
193 Pertinax (D) A Publius Helvius Pertinax
193

Pertinax 

C Publius Helvius Pertinax (son)
193-194 Pescennius Niger A Caius Pescennius Niger
195-197 Clodius Albinus A Decimus Clodius Ceionius Septimius Albinus
Severan Dynasty
193-211 Septimius Severus (D) A Lucius Septimius Severus
211-217 Caracalla A Marcus Aurelius Antoninus
211 Geta A Publius Lucius Septimius Geta
217-218 Macrinus A Marcus Opelius Severus Macrinus
217-218 Diadumemianus A Marcus Opelius Antoninus Diadumenianus (son of Macrinus)
218-222 Elagabalus A Varius Avitus Bassianus
later known as Marcus Aurelius Antoninus
222-235 Severus Alexander A Marcus Aurelius Severus Alexander
Army Emperors
235-238 Maximinus I Thrax A Gaius Julius Verus Maximinus
235-238 Maximus C Gaius Julius Verus Maximus (son of Maximinus I Thrax)
238 Gordianus I A Marcus Antonius Gordianus
238 Gordianus II A Marcus Antonianus Gordianus (son of Gordian I)
238 Balbinus A Decimus Caelius Balbinus
238 Pupienus A Marcus Clodius Pupienus Maximus
238-244 Gordianus III (D) A Marcus Antoninus Gordianus (grandson of G I, nephew of G II)
244-249 Philippus I Arabs (D) A Marcus Julius Phillippus
247-249 Philippus II A Marcus Julius Phillippus (son of Philippus I Arabs)
248 Pacatianus A Tiberius Claudius Marinus Pacatianus
248 Jotapianus A Marcus Fulvius Rufus Jotapianus
248

Silbannacus

U Silbannacus
249-251 Trajanus Decius (D) A Caius Messius Quintus Decius
as augustus : Caius Messius Quintus Trajanus Decius
251 Herennius Etruscus (D) A Quintus Herennius Etruscus Messius Decius (son of Trajan Decius)
251 Hostilianus A Caius Valens Hostilianus Messius Quintus (son of Trajan Decius)
251-253 Trebonianus Gallus A Caius Vibius Trebonianus Gallus
251-253 Volusianus A Caius Vibius Afinius Gallus Veudumnianus Volusianus
252-253 Aemilianus A Marcus Aemilius Aemilianus
252-254

Uranius Antoninus

U Lucius Julius Aurelius Sulpicius Uranius Antoninus
253-260 Valerianus I A Pubius Licinius Valerianus
253-268 Gallienus A Publius Licinius Egnatius Gallienus (son of Valerian I)
253-255

Valerianus II

C Publius Licinius Cornelius (son of Galerian)
259 Saloninus A Publicus Licinius Cornelius Saloninus Valerianus (son of Gallienus)
260-261 Macrianus A Fulvius Junius Macrianus
260-261 Regalianus A Publius Caius Regalianus
260-261 Quietus A Fulvius Julius Quietus (brother of Macrianus)
Gallic Emperors
259-268 Postumus GA Marcus Cassianius Latinius Postumus
268

Laelianus

GU Ulpius Cornelius Laelianus
268-270 Victorinus GA Marcus Piavonius Victorinus
270/271 Domitianus II GU  
270-273 Tetricus I GA Caius Pius Esuvius Tetricus
270-273

Tetricus II

GC Caius Pius Esuvius Tetricus II (son of Tetricus I)
Palmyrene Adventure
267-271 Zenobia U Septimia Zenobia (queen of Palmyra)
271-272 Vabalathus U Vabalathus (son of Zenobia)
Illyrian Emperors
268-270 Claudius II Gothicus (D) A Marcus Aurelius Valerius Claudius
268 Domitianus U Gaius Domitianus
270 Quintillus A Marcus Aurelius Claudius Quintillus (brother of Claudius II)
270-275 Aurelianus (D) A Lucius Domitius Aurelianus
275-276 Tacitus A Marcus Claudius Tacitus
276 Florianus A Marcus Annius Florianus (half brother of Tacitus)
276-282 Probus (D) A Marcus Aurelius Probus
280 Saturninus U Sextus Julius Saturninus
282-283 Carus A Marcus Aurelius Carus
283-284 Numerianus (D) A Marcus Aurelius Numerianus (son of Carus)
283-285 Carinus (D) A Marcus Aurelius Carinus (son of Carus)
284-285 Julianus I Pannonicus U Marcus Aurelius Julianus
A British Adventure
287-293

Carausius

U Marcus Aurelius Mausaeus Carausius (Usurper in Britain)
293-296

Alectus

U Alectus (Usurper in Britain)
Tetrarchy
286-305
306-308
Maximianus Herculis AW Marcus Aurelius Valerius Maximianus
a.k.a. Maximianus Herculius

305-306

Constantius I Chlorus

CW Flavius Valerius Constantius I Chlorus (father of C. I Magnus)
306-307 Severus II AW Falvius Valerius Severus
306-312 Maxentius UW Marcus Aurelius Valerius Maxentius (son of Maximianus)
308-311

Alexander

UW L. Domitius Alexander
Tetrarchy : in the East ...
284-305 Diocletianus AE Gaius Aurelius Valerius Diocletianus
296-297 Domitius Domitianus UE Lucius Domitius Domitianus
305-311 Galerius AE Galerius Valerius Maximianus
309-311 Maximinus II Daia AE Galerius Valerius Maximinus (nephew of Galerius)
308-324 Licinius I AE Valerius Licinianus Licinius
317-324

Licinius II

CE Valerius Licinianus Licinius II (son of Licinius I)
314 (Valerius) Valens AE Aurelius Valerius Valens (co-emperor with Licinius I)
324 Martinianus AE Marcus Martinianus
Constantinian Dynasty
309-337 Constantinus I Magnus A Flavius Valerius Constantinus (son of Constantius I Chlorus)
317-326 Crispus C Flavius Julius Crispus (son of C. Magnus)
335-337 Delmatius C Flavius Julius Delmatius (grandson of C. I Chlorus )
335-337

Hanniballianus

RE Flavius Claudius Hanniballianus (grandson of C I Chlorus)
337-340 Constantinus II AW Flavius Claudius Constantinus (son of C. I Magnus)
337-350 Constans AW Flavius Julius Constans
337-361 Constantius II AE Flavius Julius Constantius (son of C. Magnus)
350-353 Magnentius UW Flavius Magnus Magnentius (in Gaul)
351-353 Decentius CW Magnus Decentius (brother to Magnentius)
350 Vetranio A   (temporary co-emperor)
350 Nepotianus AW Flavius Poplius Nepotianus Constantinus
351-354 Constantius Gallus CE Flavius Claudius Gallus 
later Flavius Claudius Constantius (grandson of C I Chlorus)
355

Silvanus

UW
360-363 Julianus II Apostata A Flavius Claudius Julianus
363-364 Jovianus A Flavius Claudius Jovianus 
Valentinian Dynasty
364-375 Valentinianus I AW Flavius Valentinianus
367-383 Gratianus AW Flavius Gratianus (son of Valentinianus I)
375-392 Valentinianus II AW Flavius Valentinianus (son of Valentinianus I)
383-388 Magnus Maximus UW Magnus Clemens Maximus (Usurper in Britain)
387-388

Flavius Victor

UW   (son of Magnus Maximus) 
392-394 Eugenius AW Flavius Eugenius
393-423 Honorius AW Flavius Honorius (son of Theodosius I Magnus) 
Valentinians : in the East ...
364-378 Valens AE Flavius Valens (brother of Valentinian I)
365-366

Procopius

UE Procopius (relative of Julian II)
379-395 Theodosius I Magnus AE Flavius Theodosius
383-408 Arcadius AE Flavius Arcadius (son of Theodosius I Magnus)
the Weak West
407-411

Constantinus III

UW Constantinus (usurper in Britain)
408-411 Constans UW   (son of Constantinus)
409-411 Maximus UW   (in Spain)
409-410
414-415
Priscus Attalus  AW  (barbarian puppet emperor)
411-413 Jovinus UW Jovinus (brother of Sebastianus, Gaul)
412-413 Sebastianus UW Sebastianus (brother of Jovinus, Gaul)
421 Constantius III AW Flavius Constantius
423-425 Johannes AW
425-455 Valentinianus III AW Placidius Valentinianus (son of Constantius III)
455 Petronius Maximus AW Flavius Anicius Petronius Maximus
455-456

Avitus

UW Marcus Maecilius Flavius Eparchius Avitus
457-461 Majorianus AW Julianus Majorianus (puppet emperor of Ricimer)
461-465 Severus III AW Libius Severus (puppet emperor of Ricimer)
465-466 - vacant - Ricimer 'ad interim'
467-472 Anthemius AW Procopius Anthemius (puppet emperor of Ricimer)
472 Olybrius AW Anicius Olybrius (puppet emperor of Ricimer)
472 - vacant - vacant for 4 months after the death of Olybrius & Ricimer
473-474 Glycerius AW Flavius Glycerius (puppet emperor of Gundobad)
474-475 Julius Nepos AW
475-476 Romulus Augustu'lu's AW Romulus Augustulus
Meanwhile in the East ... the start of the Byzantine Empire
402-450 Theodosius II AE Flavius Theodosius
450-457 Marcianus AE
457-474 Leo I AE
473-474 Leo II AE
474-491 Zeno AE Tarasicodissa later Zeno
 
Not mentioned here but also deified were : Julius Caesar, Augustus' wife Livia, Claudius' son Brittanicus,  Julia (Titus' daughter),  Domitilla (Domitian's daughter) and the unnamed infant son of Domitian.

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