GRESLEY (CASTLE), a hamlet in the parish of CHURCH-GRESLEY, hundred of REPTON-AND-GRESLEY, county of DERBY, 4 miles (S.E. by S.) from Burton upon Trent, containing 129 inhabitants. There are slight vestiges of an ancient castle built by the Gresley family, who have been resident in the parish since the period of the Norman invasion; a member of another branch of this family was one of the Conqueror's ancestors.