Earl Sigurd of Orkney, known in history as Sigurd the Stout, was a man who often tried to reclaim the lands of Sodor and Mann from Godred MacHarold. He attempted to claim Man in 982 and Sodor two years later. He failed both times, but was never captured and returned in 989. His forces killed MacHarold and two of his sons in a battle in Mann, but Godred's youngest son, Harold, escaped with Godred's wife and daughter. Sigurd died in 1014, and Harold reclaimed both islands from Sigurd's young heir, Thorfinn.
- Sigurd the Stout (Sigurd Hlodvirsson) is a real historical figure who was Earl of Orkney between 991 and his death in 1014, and who at various times tried to conquer the Isle of Man.