Question: When is George I, Landgrave Of Hesse-Darmstadt's father's birthday?
Sentence (from "Philip I, Landgrave of Hesse"): Philip I, Landgrave of Hesse (13 November 1504 – 31 March 1567), nicknamed  ("the magnanimous"), was a champion of the Protestant Reformation and one of the most important of the early Protestant rulers in Germany.
Relevant evidence: Yes