Professor Ward Perkins,
First, thank you for coming to the site. I don't think that I'm too familiar with your work, but I hope to get around to reading your work soon.
You said that a number of Roman aristocrats fled to the Eastern Empire when the barbarians took full control. I personally don't blame them. However, I've always wondered; what happened to the Senate? I do know that its power had waned over the centuries with the increased centralized control of the emperor. However, once the barbarians had more or less seized power in Italy, what happened to the Senate?
Edit: Whoops, didn't see that it was over. Oh well, I'll leave this question here for anyone who wants to answer.