A very extensive landowner, his English seat was at Chilham Castle, Kent. The Norman Keep of the Castle, which is the oldest building in the village and still inhabited, dates from 1174 and was said to have been built for King Henry II. But archaeological excavations carried out in the 1920s suggest that it stands on the foundations of a much older Anglo-Saxon fortification, possibly dating from the 5th century, and there is evidence of earlier Roman habitation in the vicinity.