A Medieval motte and bailey castle built in 1068 extended and rebuilt during the 13th and 14th century with 15th century additions. Alterations to the Bear and Clarence towers in the reign of Richard III to carry artillery. King James I granted the ruinous castle to Sir Fulke Greville in 1604 who converted it into a country house. It was rebuilt in 1863-66 and 1872. Boundary wall of late 18th century date. The castle was sold to Madame Tussauds in 1978. Scheduled.