Question: Otto Eduard Leopold, Prince of Bismarck's titled name, Otto von Bismarck, comes from Bismarck, in what district of Germany?
Sentence (from "Wettin, Saxony-Anhalt"): Wettin is a small town and a former municipality in the Saalekreis district of Saxony-Anhalt, Germany, situated on the River Saale north of Halle.
Relevant evidence: Yes