sentences:  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.According to the Romanian succession laws of the kingdom's last democratic Constitution of 1923, Friedrich Wilhelm's descendants would have a claim to the Romanian throne (see "Line of succession to the former Romanian throne") upon the demise of former King Michael.