By the agreement at the state meeting in Bergen, Norway was divided into two domains, of which that of the king included Viken, the Uplands, and the Gulathingslag, except Söndmöre, while that of the earl included everything north of the king's domain, and this division remained in force for over fifteen years. The earl made his headquarters in Nidaros, while the king took up his residence in Oslo. Sigurd Ribbung remained with the earl, who had promised to watch him, but escaped during the summer of 1224, and again organized a band of rebels who resumed their old guerilla warfare. Whenever they were met by a superior force, they would make their escape across the frontier into the Swedish province of Vermeland, where they had many adherents. At last King Haakon found it necessary to invade Vermeland with an army of 2,400 men, early in 1225, in order to punish the inhabitants. He burned a great number of houses, but did not succeed in meeting the Ribbungs in any decisive battle. In April, King Haakon proceeded to Bergen, in order to celebrate his marriage with Earl Skule's daughter, Margreta. The earl received him apparently with great cordiality, and grand preparations were made for the wedding, which took place May 25, 1225. This marriage had been dictated by political considerations; but Earl Skule derived no direct benefits from it, for during all the later struggles Margreta stood faithfully by her husband, in spite of the fact that the principal opponent was her own father. The Ribbungs continued their guerilla warfare, secretly aided by Bishop Nicholas. The latter died in Oslo, November 7, 1225, after having asked and obtained the king's forgiveness for all his treachery. He was between seventy and eighty years old at the time of his death. During the winter Earl Skule and the archbishop at Nidaros attempted to negotiate peace between the Ribbungs and the king, but without any success. In the spring of 1226 Sigurd Ribbung was taken sick and died, and Squire Knut, the son of Haakon Galen and Christina, was induced to become the chief of the Ribbungs. The Ribbungs suffered several reverses, and in the following year Squire Knut disbanded his army and submitted to King Haakon, whose devoted friend he ever remained.