Question: Who is the paternal grandfather of John Vi, Prince Of Anhalt-Zerbst?
Sentence (from "John VI, Prince of Anhalt-Zerbst"): John VI of Anhalt-Zerbst (Zerbst, 24 March 1621 – Zerbst, 4 July 1667), was a German prince of the House of Ascania and ruler of the principality of Anhalt-Zerbst.
Relevant evidence: No