Question: Who is John I, Prince Of Anhalt-Bernburg's paternal grandfather?
Sentence (from "Bernhard I, Prince of Anhalt-Bernburg"): Bernhard I, Prince of Anhalt-Bernburg (c. 1218–1287) was a German prince of the House of Ascania and ruler of the principality of Anhalt-Bernburg.
Relevant evidence: No