Dates of the Roman Emperors

Theodosius was the last emperor who, in actual practice, controlled the eastern and western sections of the Roman empire. Those Roman emperors who followed him split it up. According to J.B. Bury, the following emperors of the West were either usurpers or not recognized in the East: Constantine III, John, Maximus, Severus, Olybrius, Glycerius, and Romulus Augustulus.

Also see Theodosius I feature.

Online Sources:

• Chronicle of the Emperors
• Timelines for Ancient Roman History adapted from the tables given by Sir John Edwin Sandys in A Companion to Latin Studies, Third Edition Cambridge at the University Press, 1921
• DIR - The Imperial Index: The Rulers of the Roman Empire From Augustus to Constantine XI Palaeologus