Question: Who is Philip Ii, Landgrave Of Hesse-Rheinfels's maternal grandmother?
Sentence (from "Moritz, Landgrave of Hesse"): Moritz, Prince and Landgrave of Hesse(" Moritz Friedrich Karl Emanuel Humbert" 6 August 1926 – 23 May 2013) was the son of Prince Philip, Landgrave of Hesse, and the head of the House of Brabant and the German House of Hesse.
Relevant evidence: No