Ancestral File Number: 924R-L4.
The Political History of England, Vol II, George Burton Adams Longmans Green and Co, 1905, Ch I, p54:
 "Already Norman families, who were to make so much of the history of the coming centuries, were rooted in the land. Montfort and Mortimer; Percy, Beauchamp, and Mowbray; Ferrers and Lacy; Beaumont, Mandeville, and Grantmesnil; Clare, Bigod, and Bohun; and many others of equal or nearly equal name. All these were as yet of no higher than baronial rank, but if we could trust the chroniclers, we should be able to make out in addition a considerable list of earldoms which William had established by this date or soon afterwards, in many parts of England, and in these were other great names..."
p219:  "...This list of barons who gathered to resist this invasion [of King David of Scotland] contains an unusual number of names famous in thelater history of England. The leader, from his age and experience and the general respect in which he was held, was Walter Espec; the highest in rank was William of Aumale. Others were Robert of Bruce, William of Percy, Ilbert of Lacy, Richard of Courcy, Robert of Stuteville, William Fossard, Walter of Ghent, and Roger of Mowbray, who was too young, men thought, to be in battle..."
Ancestral File Ver 4.10 924R-L4.
William married Joan De BRIWERE, daughter of William De BRIWERE and Beatrice De VAUX. (Joan De BRIWERE was born about 1190 in Stoke, Devonshire, England.)