History:
Mitford Castle dates back to the late 12th century, initially documented in 1138. It served various strategic roles, including being seized by King John in 1215 and later occupied by the Scots. By 1323, it was abandoned due to extensive damage. The site includes a motte and bailey, with the motte later converted into a shell keep—a rare type of Norman fortification with only about 60 known examples in Britain.
Exterior:
Situated on a hillock above the River Wansbeck, the castle's remains include a substantial earthen motte and a surrounding ditch. An oval bailey, defended by a series of outworks and ditches, occupies the summit of the hill. The southern half of the bailey features remnants of a curtain wall, enclosing an outer ward, while the northern half retains an earthen bank.
Interior:
Within the shell keep are the remains of a central tower from the early 13th century, divided into two barrel-vaulted chambers likely used for water storage. Foundations of earlier structures are also present. Adjacent to the shell keep are the ruins of a 12th-century chapel and associated graveyard, adding to the site's historical significance. The well-preserved earthworks and stone structures provide valuable insights into medieval defensive architecture.