A Saxon castle and later a Royal palace. The 12th and 13th century walls
surround the motte, on which a three storey stone keep was built in the middle of the 13th century to replace the 11th century wooden keep. Only the foundations remain. The motte was surrounded by a two acre bailey and a double
moat. The castle was used until about 1500 when much of the stone was used to build a new house (now demolished) nearby.