where John of Islay invaded Sutherland but was defeated by the Clan Sutherland who were led by Robert Sutherland, brother of John Sutherland, 7th Earl of Sutherland. Forfeiture of the Earldom of Ross and Lordship of the Isles In 1475, James III of Scotland forfeited the MacDonald Earldom of Ross and although the MacDonald Lordship of the Isles was not forfeited until 1493, in many ways 1475 marked the end of the lordship as a potent force. Following this is what the Books of Clanranald describe as a "great struggle for power among the Gael". Various leaders, such as Aonghas Óg who was the fourth illegitimate son of the Lord of the Isles, along with his son, Domhnall Dubh, and also Alexander MacDonald of Lochalsh and John Mor MacDonald of Dunyvaig were seeking to restore the MacDonald hegemony in the west. The Battle of Bloody Bay took place in 1480 where John MacDonald of Islay, Lord of the Isles and chief of Clan Donald was defeated by his son Aonghas Óg. Aonghas Óg's son Domhnall Dubh rebelled against James IV of Scotland and made an alliance with Henry VIII of England in an attempt to regain the Lordship of the Isles and although various attempts were made to restore the lordship, by 1545 all had failed. The ultimate victors were the Crown's hard men in the north and west: Alexander Gordon, 3rd Earl of Huntly (chief of Clan Gordon), Archibald Campbell, 2nd Earl of Argyll (chief of Clan Campbell) and John MacIain of Ardnamurchan. The various branches of the Clan Donald began accepting charters from the Crown in recognition of their separate holdings. This was part of a royal policy that successfully kept the Clan Donald divided, and in doing so they were less of a threat to the central authority. The MacDonnells of Antrim in Northern Ireland were a sept of Clan Donald. MacDonnell migration to the Glens and Rathlin Island increased in the early 16th century after the clan had rejected overtures from an increasingly powerful James IV, King of Scotland. 17th century; Civil War and 1689–1692 Jacobite rising Loss of the Lordship of the Isles fractured Highland society and the MacDonalds in particular, who were left holding lands on either side of the Irish Sea, rather than a unified block of territory. Their attempts to re-establish control destabilised Western Scotland for generations; the charge of 'Slaughter under