Had Britain already left the empire in 408 AD?

[sonic]

In 408 weren't the British supporting usurpers vying with Honorius for power? As followers of a rebellion, it would certainly be appropriate for Honorius to address them directly in the hope of regaining their loyalty and cutting off the support they were giving to Constantine III. I would suggest that, as Constantine III wasn't executed until 411 and there were also other usurpers in Gaul at this time, this entry doesn't mean the British thought of themselves as being apart from the empire: simply as not supporting Honorius in Ravenna.

Mind you, I could be wrong! :oops:

PS I agree with Robert: full references please!