Group

Britannic Empire

Nation Defunct 286 CE – 296 CE Capital Londinium > London Middlesex United Kingdom

The Britannic Empire is a short-lived breakaway state of the Roman empire in the late Roman Period.

It is formed as a result of the revolt by the naval commander Carausius.

It ends when Carausius's usurper, Allectus, is defeated by the Emperor Constantius I in 296.

Member Cities

Moran, J. (n.d.). Britannic Empire. History Atlas. Retrieved 15 September 2026, from https://www.historyatlas.com/groups/britannic-empire/