He's all locked up so he can't be tweaked. But Anjou isn't in the Alps, and the coat of arms is Fitzwilliam of Sprotborough, who weren't even descendants. Nobody had a coat of arms in Count Gilbert's time.
I don't suppose there are any known dates for Adele. But her brother was a contemporary of the Conqueror and her husband died in 1092. So the dates here are way too early.