 The castle was built c. 1060 by William the Conqueror (William of Normandy), who successfully conquered England in 1066.His son Henry I then built the Saint George's church, a keep (1123) and a large hall for the ducal Court.On Christmas 1182, a royal court celebration for Christmas in the aula of Caen Castle brought together Henry II and his sons, Richard the Lionheart and John Lackland, receiving more than a thousand knights.