Prince Heinrich Franz Wilhelm of Bavaria (28 March 1922--14 February 1958), eldest child of Crown Princess Antonia of Bavaria, nee Princess Antonia of Luxembourg, and husband Crown Prince Rupprecht. Prince Heinrich was the 1st child of Rupprecht by Antonia who was his 2nd wife. Heinrich married Anne Marie de Lustrac, daughter of Baron Jean de Lustrac, on 31 July 1951. The couple did not have children. Prince Heinrich died in a car crash in Argentina on Valentine's Day, 1958.