Bolsover Castle, Derbyshire, England. Bolsover Castle, England - Bolsover Castle is a castle in Bolsover, Derbyshire, England. It was built by the Peverel family in the 12th century and became Crown property in 1155 when the third William Peverel fled into exile. The Ferrers family who were Earls of Derby laid claim to the Peveril property