"Saint Theobald of Marly (French: Saint Thibaut, Thibault, ThiƩbaut) (died December 8, 1247) was a French abbot and saint. He was born at the castle of ...
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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." - (en.wikipedia.org 31.01.2020)