Wilhelm1882 - 1951 Born Sat, 6 May 1882 Marmorpalais, Potsdam Died Fri, 20 July 1951 Fürstenstraße 16, Hechingen Buried Hohenzollern Castle, Swabian Jura Details Parents German Crown Prince Friedrich Wilhelm Victor August Ernst Lived 69 years, 2 months, 14 days father Wilhelm II 1859 - 1941 mother Augusta Victoria of Schleswig-Holstein 1858 - 1921 Siblings Brother Eitel Friedrich of Prussia 1883 - 1942 Brother Adalbert of Prussia 1884 - 1948 Brother August Wilhelm of Prussia 1887 - 1949 Brother Oskar of Prussia 1888 - 1958 Brother Joachim of Prussia 1890 - 1920 Sister Victoria Louise of Prussia 1892 - 1980