List of Roman Emperors (4)

On these pages, you will find the names, regnal dates, and portraits of the emperors of the Roman Empire, with links to more information.

Diocletian
Diocletian
Diocletian
  • 22 December 245: Diocles 
  • 20 November 284: Imperator Caesar, Gaius Aurelius Valerius Diocletianus Augustus 
  • 1 April 286: Imperator Caesar Gaius Aurelius Valerius Diocletianus Augustus Iovius 
    Germanicus maximus (285), Sarmaticus maximus (285), Gothicus maximus (293), Persicus maximus (295), Britannicus maximus (296?), Carpicus maximus (297?), Armenicus maximus (298), Medicus maximus (298), Adiabenicus maximus (298)
  • 1 May 305: resigned 
  • 3 December 313: natural death

Maximian
Maximian
Maximian (first time)
  • 21 July 250 (?): full name unknown 
  • 1 April 286: Imperator Caesar Marcus Aurelius Valerius Maximianus Augustus Herculius
  • Germanicus maximus (287), Sarmaticus maximus (289), Gothicus maximus (293), Persicus maximus (295), Britannicus maximus (296?), Carpicus maximus (297?), Armenicus maximus (298), Medicus maximus (298), Adiabenicus maximus (298)
  • 1 May 305: resigned

Constantius I Chlorus
Constantius I Chlorus
Constantius I Chlorus
  • 31 March 250: Julius Constantius 
  • 1 March 293: Flavius Valerius Constantius Caesar Herculius 
  • 1 May 305: Imperator Caesar Gaius Flavius Valerius Constantius 
  • Germanicus maximus (293), Gothicus maximus (293), Sarmaticus maximus (294), Persicus maximus (295?), Britannicus maximus (296?), Carpicus maximus (297?), Medicus maximus (298), Adiabenicus maximus (298) 
  • 25 July 306: natural death

Galerius
Galerius
Galerius
  • c.255: Maximinus (?) 
  • 21 May 293: Gaius Galerius Valerius Maximianus Caesar Iovius 
  • 1 May 305: Imperator Caesar Galerius Valerius Maximianus Augustus
  • Germanicus maximus (293), Gothicus maximus (293), Aegyptiacus maximus (294), Thebaicus maximus (294), Sarmaticus maximus (294), Persicus maximus (295?), Britannicus maximus (296?), Carpicus maximus (297?), Medicus maximus (298), Adiabenicus maximus (298) 
  • May 311: natural death

Severus
  • date of birth and real name unknown 
  • 1 May 305: Flavius Valerius Severus Caesar 
  • August 306: Imperator Severus Augustus
  • April 307: resigned 
  • 16 September 307: murdered

Constantine the Great
Constantine the Great
Constantine the Great
  • 27 February 272: Gaius Flavius Valerius Constantinus 
  • 25 July 306: Flavius Valerius Constantinus Caesar Herculius 
  • Summer 307: Imperator Constantinus Augustus 
  • October 29, 312: Imperator Constantinus Maximus Augustus
  • Persicus maximus (312), Germanicus maximus (313), Sarmaticus maximus (313), Britannicus maximus (314?), Adiabenicus maximus (315?), Medicus maximus (315?), Gothicus maximus (315?), Cappadocicus maximus (318), Arabicus maximus (318), Armenicus maximus (318), Dacicus maximus (336)
  • 22 May 337: natural death

Maxentius
Maxentius
Maxentius
  • c.278: Marcus Valerius Maxentius 
  • 28 October 306: Imperator Maxentius 
  • April 307: Marcus Aurelius Valerius Maxentius Augustus Herculius
  • 28 October 312: kiled in action

Maximian
Maximian
Maximian (second time)
  • 21 July 250 (?): full name unknown 
  • 286-305: first reign
  • December 306: Imperator Caesar Marcus Aurelius Valerius Maximianus Augustus
  • November 308: forced to resign 
  • July 310: taken captive; suicide

Licinius
Licinius
Licinius
  • c.265; real name unknown 
  • 11 November 308:  Imperator Caesar Gaius Valerius Licinianus Licinius Augustus Iovius
  • Germanicus maximus (310), Sarmaticus maximus (310)
  • 19 September 324: resigned 
  • Spring 325: executed

Maximinus Daia
  • 20 November 270(??): real name unknown 
  • 1 May 305: Galerius Valerius Maximinus Caesar Iovius 
  • 1 May 310: Imperator Gaius Galerius Valerius Maximinus Augustus
  • Persicus (312), Sarmaticus (313), Germanicus (313) 
  • August 313: natural death

Constantine II
Constantine II
Constantine II
  • 7 Augustus 316: Flavius Claudius Constantinus 
  • 1 March 317: declared caesar
  • 9 September 337: Flavius Claudius Constantinus Augustus 
  • Alamannicus maximus (328), Germanicus maximus (338?), Sarmaticus maximus 
  • Early April 340: killed in action

Constans
Constans
Constans
  • 320 or 323: Flavius Constans 
  • 25 December 333: Flavius Constans Caesar
  • 9 September 337: Flavius Claudius Constans Augustus 
  • 338: Flavius Claudius Constans Sarmaticus Augustus
  • April 340: Flavius Claudius Constans Maximus Victor ac Triumphator Augustus
  • 18 January 350: murdered by courtiers

Constantius II
Constantius II
Constantius II
  • 7 August 317: Flavius Julius Constantius 
  • 8 November 324: Flavius Julius Constantius Caesar 
  • 9 September 337: Flavius Julius Constantius Augustus 
  • Germanicus maximus, Alamannicus maximus, Gothicus maximus (332), Sarmaticus (337), Persicus (338), Adiabenicus maximus (343) 
  • 3 November 361: natural death

Magnentius
Magnentius
Magnentius
  • c.303: Magnus Magnentius 
  • 18 January 350: Imperator Caesar Magnus Magnentius Augustus
  • 10 August 353: suicide

Julian the Apostate
Julian the Apostate
Julian the Apostate
  • May 331: Flavius Julianus 
  • 6 November 355: Flavius Julianus Caesar 
  • February 360: Flavius Claudius Julianus Augustus 
  • Germanicus maximus (360), Alamannicus maximus (360), Francicus maximus (360), Sarmaticus maximus
  • 26 June 363: killed in action

Jovian
  • 331: Jovianus 
  • 27 June 363: Flavius Jovianus Augustus
  • 17 February 364: natural death?

Valentinian I
Valentinian I
Valentinian I
  • 321: Valentinianus 
  • 25 February 364: Flavius Valentinianus Augustus 
  • Germanicus maximus (368), Alamannicus maximus (368),  Francicus maximus (368), Gothicus maximus (369) 
  • 17 november 375: natural death

Valens
Valens
Valens
  • c.328: Valens
  • 28 March 364: Imperator Caesar Flavius Valens Augustus 
    Germanicus maximus (368), Alamannicus maximus (368),  Francicus maximus (368), Gothicus maximus (369)
  • 2 August 378: killed in action

Gratian
  • April 359: Gratianus
  • 24 Augustus 367: Imperator Caesar Flavius Gratianus Augustus 
  • Germanicus maximus (368), Alamannicus maximus (368),  Francicus maximus (368), Gothicus maximus (369)
  • 25 August 383: murdered by Magnus Maximus

Valentinian II
Valentinian II
Valentinian II
  • Autumn 371: Valentinianus
  • 22 November 375: Valentinianus Augustus
  • 15 May 392: murdered by his general Arbogast

Theodosius I
Theodosius I
Theodosius I
  • 11 January 347: Flavius Theodosius 
  • 19 January 379: Flavius Theodosius Augustus
  • 17 January 395: natural death

Magnus Maximus
Magnus Maximus
Magnus Maximus
  • full name and date of birth unknown
  • Spring 383: Magnus Maximus Augustus 
  • Britannicus maximus
  • 28 July 388: executed

Arcadius
Arcadius
Arcadius
  • 377: Flavius Arcadius 
  • 19 January 383: Flavius Arcadius Augustus
  • 1 May 408: natural death

Honorius
Honorius
Honorius
  • 9 September 384: Flavius Honorius 
  • January 393: Flavius Honorius Augustus
  • 15 August 423: natural death

Literature

Dietmar Kienast, Römische Kaisertabelle. Grundzüge einer römischen Kaiserchronologie (1990 Darmstadt)