William, the Conqueror of England, was, or supposed himself to be, the father of a certain William Peveril, who attended him to the battle of Hastings, and there distinguished himself. The liberal-minded monarch, who assumed in his charters the veritable title of Gulielmus Bastardus, was not likely to let his son's illegitimacy be any bar to the course of his royal favour, when the laws of England were issued from the mouth of the Norman victor, and the lands of the Saxons were at his unlimited disposal. William Peveril obtained a liberal grant of property and lordships in Derbyshire, and became the erecter of that Gothic fortress, which, hanging over the mouth of the Devil's Cavern, so well known to tourists, gives the name of Castleton to the adjacent village.