Feastday: July 27
Death: 1247
Cistercian abbot. The son of Buchard of Montmorency, he was born in Marly Castle, France, and was raised as a knight at the court of King Philip II Augustus of France (r. 1180-1223). Undergoing a personal conversion, he left the court, gave up his worldly ambitions, and entered the Cistercian abbey of Vaux-de-Cernay in 1220. He became prior in 1230 and abbot in 1235.
Theobald of Marly (French: Saint Thibaut, Thibault, Thiébaut) (died December 8, 1247) was a French abbot and saint. He was born at the castle of Marly, Montmorency, and was trained as a knight. He served as a knight at the court of Philip Augustus, though he later entered the Cistercian monastery of Vaux-de-Cernay in 1220. He was elected prior in 1230 and ninth abbot in 1235. He was held in high esteem by Saint Louis.
Veneration
He is venerated in Thann and Hemel Hempstead.
