In 1025 a council was held at Arras against certain (Manichaean) heretics who rejected the sacraments of the Church. The Catholic Faith in the Blessed Eucharist was proclaimed with special insistence. In 1097, two councils, presided over by Lambert of Arras, dealt with questions concerning monasteries and persons consecrated to God.
Mansi, Coll. Conc., XIX, 423; XX, 492; Actes de la province de Reims (1843); Chevalier, Topo-bibl. (Paris, 1894-99), 224.