Question: Who is the maternal grandfather of Albert Iv, Duke Of Saxe-Eisenach?
Sentence (from "Dorothea Maria of Anhalt"): Dorothea Maria of Anhalt (Dessau, 2 July 1574 – Weimar, 18 July 1617), was by birth a member of the House of Ascania and princess of Anhalt.
Relevant evidence: No