Walter Giffard, Lord of Longueville in Normandy, 1st Earl of Buckingham (died 1102) was an Anglo-Norman magnate.
He was the son of Walter Giffard, Lord of Longueville (one of the few proven companions of William the Conqueror at the Battle of Hastings in 1066) [1] and Ermengarde daughter of Gerald Flaitel.
[4] He held an important castle at Longueville overlooking the River Scie as well as vast estates in Buckinghamshire.
[5] But Rufus purchased his loyalty along with several other key cross-Channel barons and fortified Giffard's and the other castles, garrisoning them with knights in the king's employ who could now ravage northeastern Normandy.
[6] He died 15 July 1102 in England and his body was returned to Normandy,[2] where it was interred at St. Mary's Church at Longueville-sur-Scie, the caput of his Norman honors.