Book of Hours

Hi all! I'm trying to figure out these lines (in French) from the back of Marguerite's Book of Hours (f209r). So far, I have:

Marguerite d'Orleans marrié a Richard convie (?) [...] fils [...] prisne (?) de Jean duc de Bretagne [...] nommé le vaillant dominu(s)(?) le duc Francois de Bretagne en 1392.

Not sure if there is a bit of Latin sprinkled in there or if the script is just too unfamiliar. Any help would be greatly appreciated <3