 Known as "Suðreyar" or southern islands in Old Norse.Norse control of the Hebrides was formalised in 1098 when Edgar of Scotland recognised the claim of Magnus III of Norway.The Scottish acceptance of Magnus III as King of the Isles came after the Norwegian king had conquered the Orkney Islands, the Hebrides and the Isle of Man in a swift campaign earlier the same year, directed against the local Norwegian leaders of the various islands.