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]
