A still greater antagonism did the introduction of the feudal land tenure arouse among the free yeomanry, who in their fierce independence could not endure any relation of enforced obedience and subordination. Therefore rebellions against the royal authority, on a smaller or greater scale, were of constant occurrence during the first half of Harold's reign, and there are even indications that they continued much longer. Many of his provinces he had to conquer twice, and it was only the enormous odds in his favor, and the promptness and severity of his punishments, which at length forced the disloyal to accept his sway. It required an energy and resolution such as his to make a nation of all these scattered, predatory, and often mutually hostile tribes; and his uniform and systematic policy, as well as his uncompromising sternness, in dealing with resistance, show that he was fully conscious of the magnitude of his task. It would be tedious to enumerate the battles he fought and the victories he won. With every year that passed he approached nearer to his goal--to be the ruler of all Norway. Many of the mightiest men in the land who had hitherto held aloof now offered him their services, and were glad to accept honors at his hands. Among these were the earl Haakon Grjotgardsson of Haalogaland, and Ragnvald, late earl of Möre, who was the father of Duke Rollo of Normandy, and through William the Conqueror the ancestor of the kings of England. Ragnvald was a brave and sagacious man, who assisted the king with counsel and with deeds, and became his most intimate friend and adviser. Less readily did the men of the great Rafnista family accept Harold's overtures. Kveld-Ulf (Night-Wolf) pleaded old age, when the king sent messengers to him, requesting him to enter his service. This was the more disappointing to Harold, because he had counted on Kveld-Ulf's using the great influence which he wielded, in his favor. He sent messengers once more and offered Kveld-Ulf's son, Bald Grim, high dignities if he would become his vassal. But Bald Grim replied that he would accept no dignity which would raise him in rank above his father. Then the king's patience was exhausted, and he would have resorted to other arguments than verbal ones, if Kveld-Ulf's brother-in-law, Oelve Nuva, had not interceded in his behalf. Oelve finally obtained the old chieftain's consent to have his second son Thorolf enter the king's service if he saw fit. Thorolf was then out on a viking cruise with Oelve's brother, Eyvind Lambe, but he was expected home in the autumn. On their return, both accepted Harold's offer and became his men. Thorolf particularly rose rapidly in the king's favor, on account of his intelligence, beauty, and courtly manners. The old Kveld-Ulf, however, looked with suspicion upon their friendship, and hinted that he expected that nothing good would come of it.