Question: What is the date of death of George Iii, Landgrave Of Hesse-Itter's mother?
Sentence (from "Philip, Landgrave of Hesse-Philippsthal"): Philip of Hesse- Philippsthal( 14 December 1655 – 18 June 1721) was the son of William VI, Landgrave of Hesse- Kassel and Hedwig Sophia of Brandenburg.
Relevant evidence: No