Sandal Castle is an early 12th century earthwork motte and bailey fortress, founded by William de Warenne. In 1180, Hamelin de Plantagenet founded the stone castle, which was strengthen throughout the 13th century. In the wide outer ditch, are the foundations of the gatehouse, with fragments of the hall, a large well and other foundations in the bailey. Guarding the motte, are the fine ashlar plinths of twin round towers and an unusual D-shaped inner barbican, encased by a rock-cut ditch. The motte which offer a fine view of the 1460 battle site, supports the foundations of a circular keep, flanked by three semi-circular towers and a 15th century pentagon tower. Slighted during the Civil War, the remains of the entire castle were left uncovered after excavation. A miles north-west at Wakefield is Lowe Hill and 9 miles east is Pontefract Castle.