 The treaty also included that Scotland confirmed Norwegian sovereignty over Shetland and Orkney.Still, Scottish rule over the Isle of Man was finally confirmed only after the Manx under Guðrøðr Magnússon were decisively defeated in the 1275 Battle of Ronaldsway.The Clan MacNeil has strong ties to the Isle of Barra and can trace its lineage back to the O'Neills of Ulster who came to Barra from Ireland around the year 1000.