I like it a lot - unusual without being outlandish, feminine but not too frilly, and definitely nothing AT ALL like Ermentrud. Maybe your dad has scary Claudias in his past! lol.
It matches better with Mattea than the others for me, but it's not wildly out of place with them, and if you suddenly had quintuplets and those were their names, I'd think the sibset was pretty awesome.
My cousin is a Claudia - Claudia Jane, and for some reason I can't think of any other combos. Sorry.:)