Mac Colla, with the remaining Irish and clansmen, ignored Charles's orders and continued the conflict in the western Highlands, allegedly refusing cooperation with a remaining Royalist force under George Gordon, 2nd Marquess of Huntly, who still held out in the north. He went on to win a further victory against the Campbells at Lagganmore, following which he was said to have burned down a building full of Campbell women and children that was henceforth known as Sabhal nan Cnamh, the Barn of Bones. The campaign petered out in a series of sieges of castles in Kintyre, and Mac Colla was eventually defeated at the Battle of Rhunahaorine Moss in May 1647, escaping with most of his troops to the Isle of Gigha and then to Islay. Leaving small garrisons of Highlanders at Dunaverty and at Dunyvaig on Islay, the latter under his father Coll, he then returned to Antrim along with most of his men. His brother Archibald (Gilleasbuig) was killed at the Siege of Skipness Castle in August 1646.