<Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> The end of Roman rule in Britain was the transition from Roman Britain to post-Roman Britain . Roman rule ended in different parts of Britain at different times, and under different circumstances . </P> <P> In 383, the usurper Magnus Maximus withdrew troops from northern and western Britain, probably leaving local warlords in charge . Around 410, the Romano - British expelled the magistrates of the usurper Constantine III, ostensibly in response to his failures to use the Roman garrison he had stripped from Britain to protect the island . Roman Emperor Honorius replied to a request for assistance with the Rescript of Honorius, telling the Roman cities to see to their own defence, a tacit acceptance of temporary British self - government . Honorius was fighting a large - scale war in Italy against the Visigoths under their leader Alaric, with Rome itself under siege . No forces could be spared to protect distant Britain . Though it is likely that Honorius expected to regain control over the provinces soon, by the mid-6th century Procopius recognised that Britannia was entirely lost to the Romans . </P> <P> By the early 5th century, the Roman Empire could no longer defend itself against either internal rebellion or the external threat posed by expanding Germanic tribes in Northern Europe . This situation and its consequences governed the eventual permanence of Britain's detachment from the rest of the Empire . </P>

The number of years since the romans came to britian
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