Background
Karl Anton was the third and youngest son of Leopold, Prince of Hohenzollern and his wife Infanta Antónia of Portugal.
Karl Anton was the third and youngest son of Leopold, Prince of Hohenzollern and his wife Infanta Antónia of Portugal.
Karl Anton"s elder brothers were William, Prince of Hohenzollern and Ferdinand I of Romania. Titles and styles 1 September 1868 – 3 September 1869: His Serene Highness Prince Karl Anton of Hohenzollern-Sigmaringen 3 September 1869 – 21 February 1919: His Serene Highness Prince Karl Anton of Hohenzollern.