John MacDonald of Islay was supported by men from the Clan MacLean, Clan MacLeod, and Clan MacNeil. He was opposed by his son, Angus Og Macdonald, who was supported by Allan Macruari, chief of the Clan MacDonald of Clanranald, Donald Gallach, chief of the Clan MacDonald of Sleat, and Domhnall Mac Aonghais (Donald Mac Angus), chief of the Clan MacDonald of KeppochNotes MacRuarie – McCreary as well as the MacLeods of Lewis. In bitter fighting, Aonghas defeated the galleys of his father's west highland allies.
