Peter de Mauley, as he now chose to style himself, thus became, by right of his wife, feudal lord of Isabel's demesnes, situated at Egton, Juby-Park-Houses, and Newbiggin, near Whitby; Mauley Cross, near Pickering; Bainton, near Driffield; Ellerton, near Pocklington; and Seaton, near Hornsea; but the King compelled him to pay for the livery of these estates a fine of 7,000 marks. He built a new castle near the old one, and called it, from the beauty of the situation, Moult-grace, but which the people, in consequence of his oppression, transformed, by the change of a single letter, into Moult-grave, since then corrupted into Mulgrave. He was a firm adherent of John in his troubles with the Pope and the Barons, and was rewarded for his services with other considerable grants of lands, the Sheriffdoms of Dorset and Somerset, and, under Henry III., with the Governorship of Sherborne Castle. He died in 1221, and the ill-fated Isabel pre-deceased him, whose body he buried in Meaux Abbey, near Beverley, giving with it a grant of land. They had a son--Peter--who succeeded, who was followed by six other Peters in unbroken succession, all of whom enjoyed the estates, excepting the seventh, who died v.p. The fourth was created a baron by writ of summons in 1295; but Peter the eighth, fourth in the barony, dying without issue in 1415, the dignity fell in abeyance between his sisters and co-heiresses--Constance, who married, first, William Fairfax, secondly, Sir John Bigot, and who succeeded to Moult-grave, and Elizabeth, who married George Salvin. The title was revived in 1838, as a barony by patent, in the person of the Hon. W. F. Spencer Ponsonby, third son of the Earl of Bessborough, a descendant, through females, of Elizabeth Salvin; but the old barony by writ still lies in abeyance among the representatives of the above co-heiresses. The death of Prince Arthur is still shrouded in mystery, the English chroniclers giving different versions of it, and Shakspeare representing him as being killed by a fall from the walls of his prison when attempting to escape; but the French historians, who are more likely to be correct, coincide in attributing it to the hand of Peter de Malo-lacu, in the presence of John, or even to that of the King himself. The Earldom of Wiltes.