 13 Macdonald galleys were sunk and another 12 or 13 were destroyed or captured off Copeland Island, at the entrance to Belfast Lough.Not long after returning from Ireland, a feud seems to have arisen between Dòmhnall Gorm Mòr and the chief of Clan Macleod, Ruairidh Mòr.The Sleat chief had married the sister of the Macleod chief, and after some time sent her back to Macleod.