Philipp, Prince and Landgrave of Hesse (6 November 1896 – 25 October 1980) was head of the Electoral House of Hesse from 1940 to 1980. He joined the Nazi Party in 1930, and, when they gained power with the appointment of Adolf Hitler as Chancellor in 1933, he became Oberpräsident of the Prussian Province of Hesse-Nassau .
Wolfgang would have been his father's heir as King of Finland instead of his elder twin Prince Philipp of Hesse (1896–1980), who was the next heir of the rights over the defunct Electorate of Hesse, but apparently because Wolfgang was with his parents in 1918 and ready to travel to Finland (where a wedding to a Finnish lady was reportedly being prepared for the coming Crown Prince).
Von Uli Hesse. Reportage 30.12.2020. Die Berliner Ostkurve. Bei Hertha BSC ging es schon immer zur Sache. In ... Von Philipp Köster. Interview 7.8.2022