Early 407 -- Constantine III seizes control of the Roman garrison in Britain , declares himself emperor , and crosses into Gaul .
The Roman military is leaderless for several years until Constantius III becomes patrician .
The Roman military is leaderless for several years until Constantius III becomes patrician .
Simplificar este texto: Early 407 -- Constantine III seizes control of the Roman garrison in Britain , declares himself emperor , and crosses into Gaul . Producción: