Hugh de Grandmesnil was a commander at the Battle of Hastings. Following the conquest William I gave De Grandmesnil a 100 manors for his services, sixty-five of them in Leicestershire. He was appointed sheriff of the county of Leicester and Governor of Hampshire. He married the beautiful Adeliza, daughter of lvo, Count of Beaumont-sur-l'Oise, with whom he inherited Brokesbourne in Herefordshire, and three lordships in Warwickshire. Together they had five sons and as many daughters — namely, Robert, William, Hugh, lvo, and Aubrey; Adeline, Hawise, Rohais, Matilda, and Agnes Baron Grandmesnil was at the heart of Anglo-French politics. In 1067 Hugh joined with William Fitz Osbern and Bishop Odo in the government of England, during the King's absence in Normandy. He also was one of the Norman nobles who interceded with the Conqueror in favour of Williams’ son Robert Court-heuse, and effected a temporary reconciliation. Adelize wife of Hugh de Grandmesnil died at Rouen in 1087, and was buried in the Chapter House of St. Evroult. In 1094, Hugh de Grentmesnil was again in England, and worn out with age and infirmity, finding his end approaching, assumed, in accordance with the common practice of the period, the habit of a monk, and expired six days after he had taken to his bed, 22nd of February, in the city of Leicester. His body, preserved in salt and sewn up in the hide of an ox, was conveyed to Normandy by two monks of St. Evroult, and buried by the Abbot Roger on the south side of the Chapter House, near the tomb of Abbot Mainer.His son Ivo de Grandmesnil inherited the Honour of Leicester on Hugh's death.
