 The Cistercian abbey of Longpont, founded in 1131, counted among its monks the theologian Pierre Cantor, who died in 1197, and Blessed John de Montmirail (1167–1217), who abandoned the court of Phillipe-Auguste in order to become a monk.The abbey of St. Vincent at Laon was founded in 580 by Queen Brunehaut.Among its earlier monks were