If this is Countess Natascha Abensperg und Traun it might be a piece by Köchert which would explain why it looks somehow familiar.
I think she was one of the most attractive ladies today.
Edit: After a quick search for pictures I think she's probably the elder sister Tatjana d'Abo.
--Previous Message-- : is wearing a tiara that looks awfully : familiar, as if it used to belong to a big, : royal family but was since sold. Did anyone : else get a sense of deja vu? : : Sorry if it's already been discussed, but : the posts are coming thick and fast! :