"Roger de Beaumont (de Bello Monte), Seigneur of Beaumont and Pont-Audemer, (He built a castle at Beaumont-le-Roger, on the hill above Vieilles, which thus lost its importance, Beaumont becoming the caput of the honour.) was eldest son of Humphrey abovenamed. He appears to have remained faithful to the young Duke William during the disturbances of the earlier part of his reign, in the course of which he defeated and slew Roger de Tosny. He is said to have furnished 60 ships for the invasion of England. He did not accompany the expedition, but remained in Normandy as the principal adviser of the Duchess Maud, to whom the government of the duchy was entrusted. In 1071 the King committed Morcar as a prisoner to his custody. Up to the year 1082 he constantly appears as a witness to the charters of William the Conqueror. At the time of the Domesday Survey, 1086, he held land in Dorset and co. Gloucester. About 1088 he founded the collegiate church of the Holy Trinity at Beaumont-le-Roger for canons of St. Frideswide of Oxford. He was a benefactor of St. Pierre-de-Préaux and of St. Wandrille. He m. Adeline, sister of Hugh and da. of Waleran, Counts of Meulan. Shortly after 1090 Roger became a monk at the Abbey of Préaux. He d. some years later, and was bur. there with his father." [1]
[1] George E. Cokayne and Vicary Gibbs, ed., The Complete Peerage, rev., Vol. 7, Husee to Lincolnshire (London: St. Catherine Press, 1929), 522-23.