A contemporary historian of the acts of Roger from the year 1127 to 1135, founds his title on merit and power, the consent of the barons, and the ancient royalty of Sicily and Palermo, without introducing Pope Anacletus, (Alexand. Coenobii Telesini Abbatis de Rebus gestis Regis Rogerii, lib. iv. in Muratori, Script. Rerum Ital. tom. v. p. 607 - 645)