It was located within the medieval County of Maine, invaded and conquered by Duke William of Normandy in the early 1060s, just before his invasion of England.
Wynebald was granted lands in Gloucestershire and Somerset out of those forfeited by Turstin FitzRolf, and was made seneschal of Caerleon, referring to himself as one of Henry I's most important noblemen.
Hamelin was given lands in southeast Wales, in what was to become the Welsh Marches, and in Wiltshire, where he held Castle Eaton, Cheverel and Sutton.
Together with his brother Wynebald, he also founded the Benedictine Priory in the town as an alien cell of St Vincent, Le Mans, ca.
His other daughter's name is unknown, but she was the mother of Hugh de Gundeville, administrator and justiciar of king Henry II.