| Peterborough Castle | |
| Location: | Peterborough, Cambridgeshire, England |
| Coordinates: | 52.573°N -0.2396°W |
| Map Type: | Cambridgeshire |
| Map Size: | 200 |
| Type: | Motte and bailey |
| Condition: | Earthworks only survive |
Peterborough Castle, also known as Mount Thorold and Touthill, was a medieval motte and bailey castle in Peterborough, Cambridgeshire, England.
Peterborough Castle was built by Abbot Thorold of Peterborough, a Norman appointed to the post by William the Conqueror.[1] A motte and bailey design was erected close to the cathedral, in what is now the Dean's garden.[2] Thorold built the castle to protect himself against the monks in the cathedral, during the turbulent post-conquest period.[3] The castle was destroyed by the 12th century abbot Martin de Bec.[3]
Today only the motte survives of the castle and is now between ten and twelve metres high.[3] The castle has scheduled monument status.[3]