Question: Who is George Ii, Landgrave Of Hesse-Darmstadt's maternal grandfather?
Sentence (from "George II, Landgrave of Hesse-Darmstadt"): From 1645 to 1648 he led the so-called "Hessenkrieg" against the Landgravine Amalie Elizabeth of Hesse-Kassel over the inheritance of the extinct line of Hesse-Marburg.
Relevant evidence: No