Prince Louis of Battenberg
…of Milford Haven were the maternal grandparents of Prince Philip, Duke of Edinburgh. Louis was born on 24 May 1854 in Graz, Styria, the eldest son of Prince Alexander of Hesse and by Rhine by his morganatic marriage to Countess Julia von Hauke. Because of his morganatic parentage, Louis did not inherit his father's rank in the Grand Duchy…