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

22 December 245: Diocles
20 November 284: Imperator Caesar, Gaius Aurelius Valerius Diocletianus Augustu
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 (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

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

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

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

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 (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

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

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

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

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

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

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

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

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

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

Theodosius I

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

Magnus Maximus

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

Arcadius

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

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)