sentences:  Friedrich Wilhelm was born in Schloss Umkirch.He was the eldest son of Friedrich, Prince of Hohenzollern (1891–1965) and his wife, Princess Margarete Karola of Saxony (1900–1962), the daughter of the last King of Saxony Frederick Augustus III.He became the head of the House of Hohenzollern on 6 February 1965 following the death of his father Prince Friedrich, and remained so until his death on 16 September 2010.