Carisbrooke Castle is a historic motte-and-bailey castle, an Elizabethan artillery fortress, a king's prison (noted as being where King Charles I was imprisoned in the months before his trial) and a royal summer residence. Carisbrooke is at the very heart of the Isle of Wight's history, where you will find a fascinating museum and an Edwardian garden. There are traces of a Roman fort underneath the later buildings. It is now under the control of English Heritage.
The castle is reputedly haunted by three apparitions: a Grey Lady, a young man wearing a leather jerkin and a "huge man" wearing a white gown. All have been sighted at the moat. One witness claims to have had a conversation with the male in the leather jerkin for several minutes until he suddenly disappeared.
Castle Hill,
Newport,
Isle of Wight,
PO30 1XY.
For further information, please read Haunted Castles of Britain and Ireland by Richard Jones and Haunted Heritage by John Mason.