Soldier. After serving with Frederick the Great during the Seven Years' War, he took up residence in 1769 at his family's exclave, the County of Montbéliard, of which he was also made lieutenant-general in March 1786 by his eldest brother, Charles Eugene, Duke of Württemberg, who had begun to come into the inheritance of portions of the County of Limpurg in the 1780s.
Carl, Duke of Württemberg (1 August 1936 – 7 June 2022), he married Princess Diane d'Orléans on 18 July 1960. They have six children and fourteen grandchildren. Duchess Maria Antonia of Württemberg (31 August 1937 – 12 November 2004).