The reign of Roger II was one of vigour, of success, and of internal tranquillity. He rendered tributary the Mohammedan tyrants of Tripoli and Tunis, built fortresses, churches, and monasteries, and administered justice with unparalleled severity, in regard not only to the poor, but to his haughty barons. The feudal system which had long before been introduced into Naples, he perfected; and extended its observance to Sicily, which had hitherto followed the policy of the Greeks and Saracens. By this revolution, the free colonists were at once transformed into vassals; new laws were introduced, which were calculated to confirm the ascendency of the nobles and prelates; and new fiscal impositions followed, more oppressive, we are told, than any which had been invented by preceding conquerors. But here, as everywhere else, the same system also brought its advantages. In their native hills and forests, the Normans, like the Lombards, and, we may add, like all other people of Scandinavian or of Germanic descent, had been accustomed to meet twice a year, not merely to advise their chief, but to form a sort of diet or parliament, where their more weighty affairs were discussed and decided. At first these assemblies consisted of the conquerors only; but in time the more influential inhabitants were permitted to attend them. During a long period, however--probably unto the reign of Frederick II--they consisted of two estates only, the nobles and the ecclesiastics; the great body of the people had no rights, and consequently no representation. But as the towns purchased their independence of the feudal tribunals, and constituted themselves into municipal corporations; as the number of these corporations was multiplied by charters from the crown the new communities were permitted to send deputies to their general meetings. The kings, who so often suffered from the powers of a haughty aristocracy, were here, as elsewhere, sufficiently disposed to encourage the formation and influence of this third chamber, or arm of the legislature. Besides, the burgesses were generally more able to supply the wants of the state; they were attached to the crown which had called them into existence; and among them justice was administered, at least in the last resort, by the royal judges. This triple power of the legislature was established contemporaneously both in the island and on the continent; but in the former, which had less intercourse with the world, it has subsisted in greater vigour down to our own times. But if Roger thus established his sovereignty, he had the mortification to lose his two eldest sons, and to see the succession depend on a third, who was at once vicious and imbecile. Soon after his death, which happened in 1154, troubles began to distract the realm.[i]