High Quality Content by WIKIPEDIA articles! Peveril Castle (also Castleton Castle or Peak Castle) is a medieval building overlooking the village of Castleton in the English county of Derbyshire. Its site provides views across the Hope Valley and Cave Dale. The castle is named after its founder, William Peveril, who held lands in Nottinghamshire and Derbyshire on behalf of the king. It was built some time between the Norman Conquest in 1066 and its first recorded mention in 1086, in the Domesday Survey. Nearby Castleton benefited from the presence of the castle, which acted as the administrative centre of an independent lordship called Peak. The town became the economic centre of the lordship.