Norwich Castle was founded some time between 1066 and 1075, when William the Conqueror ordered its construction because he wished to have a fortified place in the important city of Norwich. It proved to be his only castle in East Anglia.
The castle is reputedly haunted by a woman in black Victorian-era clothing.
Felbrigg,
Norwich,
Norfolk,
NR11 8PR.
For further information, please read Haunted Britain by Richard Jones.