NameOsbern de Bolebec Lord of Longueville [68, New series, vol 5, “Giffards”, Geo Wrottesley, p. 4], [60, Vol X, Appx F, p.48, Table I], [80, Son, Walter Giffard, p. 456]
GeneralK-R says he was Walter Giffard of Bolbec.
Notes for Osbern de Bolebec Lord of Longueville
Geo Wrottesley says Osbern’s wife was Aveline, third sister of Gunnora, wife of Richard duke of Normandy.