 In 1528, Dòmhnall Gruamach received considerable support from his half-brother, Iain, son of Torquil, chief of Clan Macleod of Lewis.That year their combined forces were successful in driving out the Macleods of Harris & Dunvegan, and their vassals, from the barony of Trotternish.Dòmhnall Gruamach, in return, then aided Macleod of Lewis in obtaining effective possession of Lewis.