William d'Ecouis (sometimes referred to as William de Schoies) was an early Anglo-Norman baron, who is mentioned in the Domesday Book of 1086[1] as a substantial holder of land and manors.
William d'Ecouis founded Middleton castle, a motte-and-bailey fortress thought to be constructed from timber, the remains of which is a scheduled monument listed as Middleton Mound.[2] The motte, surrounded by a ditch, is at the west side of Station Road in Middleton, Norfolk, a village 3miles south-east from King's Lynn, on the A47 road.