Middleton Mount, also known as Middleton Castle, is a motte and bailey castle located in the Norfolk village of Middleton, close to Kings Lynn.
The castle is thought to date from either the 11th or 12th centuries. It is thought that the castle may have been founded by William d’Ecouis who had accompanied William I (the Conqueror – 1066-1087) during the Norman invasion of England. Alternatively, it may have been constructed during the Anarchy.
It is thought likely that the site of the castle may have been occupied during the Anglo-Saxon period as a manorial centre.
As with many other castles of the period, Middleton Castle would have been constructed out of wood. Today, the earthwork remains of the castle include the large mound or motte, surrounded by a ditch. The remnants of the bailey of the castle lies, including part of its ditch, to the east of the motte.
The castle is open to the public and is visitable during reasonable daylight hours.