Roger, king of Sicily, had a brother and a sister. His brother, by name Mainfroi, rebelled against him, and kindled a war in the kingdom, bloody in its immediate effects, and portentous in its future consequences. But it was his fate to lose two battles, and to fall into the king's hands. The punishment of his revolt extended no farther than the loss of liberty. This act of clemency served only to make Roger pass for a barbarian in the estimation of the disaffected party among his subjects. They contended that he had saved his brother's life only to wreak his vengeance on him by tortures the more merciless because protracted. People in general, on better grounds, transferred the blame of Mainfroi's harsh treatment while in prison to his sister Matilda. That princess had, in fact, cherished a long-rooted hatred against this prince, and was indefatigable in her persecutions during his whole life. She died in a very short time after him, and her premature fate was considered as the retribution of a just providence, for her disregard of those sentiments implanted by nature for the best purposes. Mainfroi left behind him two sons. They were yet in their childhood. Roger had a kind of lurking desire to get rid of them, under the apprehension lest, when arrived at a more advanced age, the wish of avenging their father might hurry them to the revival of a faction which was not so entirely overthrown as to be incapable of originating new intrigues in the state. He communicated his purpose to the senator Leontio Siffredi, his minister, who diverted him from his bloody thoughts by undertaking the education of Prince Enriquez, the eldest, and recommending the care of the younger, by name Don Pedro, to the constable of Sicily, as a trusty counsellor and loyal servant. Roger, assured that his nephews would be trained up by these two men in principles of due submission to the royal authority, gave up the reins of guardianship to their control, and himself took charge of his niece Constance. She was of the same age with Enriquez, and only daughter of the princess Matilda. He allowed her an establishment of female attendants, and of masters in every branch of the politer studies, so that nothing was wanting, either to her instruction or her state.