sentences:  Louis Antoine de Gontaut
  
  Louis Antoine de Gontaut-Biron, duc de Biron (1700–1788) was Duke of Biron and a French military leader who served with distinction under Louis XV, and was made a Marshal of France in 1757.He was the fourth son of Charles-Armand de Gontaut, duc de Biron, and Marie-Antoinette, Duchesse de Lauzun.