|Peterborough, Cambridgeshire, England|
|Coordinates||grid reference TL194987|
|Type||Motte and bailey|
|Condition||Earthworks only survive|
Peterborough Castle was built by Abbot Thorold of Peterborough, a Norman appointed to the post by William the Conqueror. A motte and bailey design was erected close to the cathedral, in what is now the Dean's garden. Thorold built the castle to protect himself against the monks in the cathedral, during the turbulent post-conquest period. The castle was destroyed by the 12th century abbot, Martin de Bec.
- Armitage, Ella. (1912) The Early Norman Castles of the British Isles. London: John Murray.