After the events now related Olaf returned with his people to Viken. He went first to Tunsberg, and remained there a short time, and then proceeded to the north of the country. In harvest-time he sailed north to Throndhjem, and had winter provision laid in there, and remained there all winter (A.D. 1090). Olaf Haraldson was now sole and supreme king of Norway, and the whole of that sovereignty, as Harald Harfager had possessed it, and had the advantage over that monarch of being the only king in the land. By a peaceful agreement he had also recovered that part of the country which Olaf the Swedish king had before occupied; and that part of the country which the Danish king had got he retook by force, and ruled over it as elsewhere in the country. The Danish king Canute ruled at that time both over Denmark and England; but he himself was in England for the most part, and set chiefs over the country in Denmark, without at that time making any claim upon Norway. 99. HISTORY OF THE EARLS OF ORKNEY. It is related that in the days of Harald Harfager, the king of Norway, the islands of Orkney, which before had been only a resort for vikings, were settled. The first earl in the Orkney Islands was called Sigurd, who was a son of Eystein Giumra, and brother of Ragnvald earl of More. After Sigurd his son Guthorm was earl for one year. After him Torf-Einar, a son of Ragnvald, took the earldom, and was long earl, and was a man of great power. Halfdan Haleg, a son of Harald Harfager, assaulted Torf-Einar, and drove him from the Orkney Islands; but Einar came back and killed Halfdan in the island Ronaldsha. Thereafter King Harald came with an army to the Orkney Islands. Einar fled to Scotland, and King Harald made the people of the Orkney Islands give up their udal properties, and hold them under oath from him. Thereafter the king and earl were reconciled, so that the earl became the king's man, and took the country as a fief from him; but that it should pay no scat or feu-duty, as it was at that time much plundered by vikings. The earl paid the king sixty marks of gold; and then King Harald went to plunder in Scotland, as related in the "Glym Drapa". After Torf-Einar, his sons Arnkel, Erlend, and Thorfin Hausakljufer (1) ruled over these lands. In their days came Eirik Blood-axe from Norway, and subdued these earls. Arnkel and Erlend fell in a war expedition; but Thorfin ruled the country long, and became an old man. His sons were Arnfin, Havard, Hlodver, Liot, and Skule. Their mother was Grelad, a daughter of Earl Dungad of Caithness. Her mother was Groa, a daughter of Thorstein Raud. In the latter days of Earl Thorfin came Eirik Blood-axe's sons, who had fled from Earl Hakon out of Norway, and committed great excesses in Orkney. Earl Thorfin died on a bed of sickness, and his sons after him ruled over the country, and there are many stories concerning them. Hlodver lived the longest of them, and ruled alone over this country.