Question: Who is the paternal grandfather of John Vi, Prince Of Anhalt-Zerbst?
Sentence (from "Rudolph, Prince of Anhalt-Zerbst"): Rudolph of Anhalt-Zerbst (Harzgerode, 28 October 1576 – Zerbst, 30 July 1621), was a German prince of the House of Ascania and ruler of the unified Principality of Anhalt.
Relevant evidence: No