Question: When did the former wife of Graf von Bismarck-Schönhausen donate a piece to the Smithsonian she purchased on her honeymoon with a different man?
Sentence (from "Carl-Eduard von Bismarck"): Carl-Eduard Otto Wolfgang Jayme Anders Graf von Bismarck-Schönhausen (born February 16, 1961 in Zurich) is a German politician (CDU).
Relevant evidence: No