Louis Frederick, Duke of Württemberg-MontbéliardLudwig Friedrich von Württemberg-Mömpelgard "Louis Frederick of Württemberg-Montbéliard (29 January 1586 in Montbéliard – 26 January 1631 in Montbéliard) was the founder of a cadet line of the House of Württemberg known as the Dukes of Württemberg-Montbéliard. Louis Frederick of Württemberg was born at Montbéliard Castle as the fifth child and second son of Duke Frederick I of Württemberg, and princess Sibylla of Anhalt." - (en.wikipedia.org 11.11.2019)