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.
Frederick I, Grand Duke of Baden (1826–1907), Grand Duke of Baden; Frederick II, Grand Duke of Baden (1857–1928), Grand Duke of Baden; Bohemia. Frederick, Duke of Bohemia (died 1189), Duke of Olomouc and Bohemia; Britain. Frederick, Prince of Wales (1707–1751), eldest son of King George II of Great Britain; Brandenburg/Prussia