List of Roman usurpers

The following is a list of usurpers in the Roman Empire. For an overview of the problem and consequences of usurpation, see Roman usurpers. In the Eastern Roman Empire (395–1453), rebellion and usurpation were so notoriously frequent (in the vision of the medieval West, where usurpation was rare) that the modern term "byzantine" became a byword for political intrigue and conspiracy. For usurpation in the Eastern Roman Empire, see List of Byzantine usurpers.

Key

• kPG, killed by the Praetorian Guard
• kS, killed by own soldiers
• kB, killed in battle
• e, executed
• S, suicide
• dates are beginning and end of reign
• origin of the rebellion indicated where possible
• the list is complete until the advent of the tetrarchy in the end of the 3rd century