It was built in 1140 by William D'Albini as an ostentatious way of showing his increased importance after marrying Alice of Louvain, the widow of Henry I. The Keep is set in 12 acres of grounds, which are a pleasant place for picnics and, has some of the largest ramparts in Britain being in places 120 feet from top to Bottom. The village of Castle Rising is beautifully preserved and features a fine Norman church and an important 17th century Almshouse.