The first earl in the Orkney Islands was called Sigurd, who was a son of Eystein Glumra, 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.
Heiti, Gorr’s son, was father of Sveiði the sea-king, the father of Halfdan the old, the father of Ivar the Uplanders’ earl, the father of Eystein the noisy, the father of earl Rognvald the mighty and the wise in council.
Orkneyinga Saga makes his grandson Hrolf identical to Rollo, conqueror of Normandy, and hence ancestor of William the Conqueror and the resulting Royal Families of England, although the connection is viewed skeptically by scholars.