Gresham Castle is located south of the village of Gresham in the north of the English county of Norfolk. The medieval castle was actually a fortified manor house. Permission by license to crenellate his manor house was gained by Sir Edmund Bacon in 1318. Gresham was one of a group of late castles to be fortified or built along the east coast that include Baconsthorpe, Caister, Claxton and Mettingham Castle in Suffolk.