Pickering Castle, North Yorkshire, England
The original structure was built by the Normans under William the Conqueror in 1069–1070. This early building included the large, central mound (the motte), the outer palisades (enclosing the bailey) and internal buildings, notably the keep on top of the motte. Ditches were also dug to make assault on the walls difficult. The main purpose of the castle at this time was to maintain control of the area after the harrying of the North.
Its remains are particularly well-preserved because it is one of only a few castles which were largely unaffected by the Wars of the Roses and the Civil War of the 17th century.