People Prince Heinrich of Hesse and by Rhine Hessian Royal (1927-1999)30 October 1927 – 18 November 1999 Prince Philipp, Landgrave of Hesse6 November 1896 – 25 October 1980Princess Mafalda of Savoy2 November 1902 – 27 August 1944 Prince Heinrich of Hesse and by Rhine30 October 1927 – 18 November 1999 ParentsPrince Philipp, Landgrave of Hesse6 November 1896 – 25 October 1980Princess Mafalda of Savoy2 November 1902 – 27 August 1944SiblingsPrince Moritz, Landgrave of Hesse6 August 1926 – 23 May 2013 From Wikipedia and Wikidata (public domain), updated daily.