Question: Who is Archduchess Marie Astrid Of Austria's father-in-law?
Sentence (from "Archduke Carl Christian of Austria"): Archduke Carl Christian of Austria (born 26 August 1954 at Château de Belœil in Belœil, Belgium) is a Belgian aristocrat and a member of the formerly ruling Austro-Hungarian House of Habsburg-Lorraine.
Relevant evidence: No