Question: Who is the paternal grandfather of Adolph I, Prince Of Anhalt-Köthen?
Sentence (from "Albert IV, Prince of Anhalt-Köthen"): (d. Coswig, 24 November 1423), was a German prince of the House of Ascania and ruler of the principality of Anhalt-Zerbst until 1396, when he became the first ruler of the principality of Anhalt-Köthen.
Relevant evidence: No