Constantine III

Constantine III, often referred to as Constantine III of Britain, was a Roman usurper who declared himself emperor in the early 5th century AD. He is notable for leading a rebellion against the Roman Empire during a time when its authority in Britain was waning. In 407 AD, he crossed to Gaul (modern France) and established a short-lived regime. His reign was marked by attempts to assert independence from Rome, but he was eventually defeated and forced to return, where he was captured and likely executed. Constantine III's actions reflect the struggles and fragmentation of the Western Roman Empire during its decline.