Template:Chronological scheme of the Tetrarchy

(See also: Simplified Family tree of Tetrarchs)

Year Western Roman Empire Eastern Roman Empire
Usurpers Caesares Augustus Augustus Caesares Usurpers
286293 Carausius Maximian Diocletian
293296 Allectus Constantius I Galerius
297 Domitian III
298305
306 Maxentius
Maximian
Severus II Constantius I Galerius Maximinus II
307 Constantine I Severus II
308310 Alexander
Maxentius
Maximian
Licinius I
311312 Maxentius Constantine I Licinius I
Maximinus II
313
313316 Licinius I
316317 Crispus Constantine I
Valens I
Licinius II
317324 Constantine II Constantine I
324 Constantine I
Martinian
Licinius II
Constantius II
324333 Constantine I
(Sole Roman Emperor)
Constantius II
333335 Constantine II
Constans I
335337 Constantine II
Constans I
Dalmatius