At the Battle of Inverlochy (1645), the Scottish Covenanter forces led by Archibald Campbell, 1st Marquess of Argyll were defeated by the Royalist forces of James Graham, 1st Marquess of Montrose whose army was mainly made up of Scots of the Clan MacDonald, Clan Maclean and others from Ireland. After the Battle of Inverlochy, Montrose and the Macleans burnt Castle Campbell, but the castle remained in Campbell hands. In the wake of the Battle of Inverlochy the Clan Lamont took the opportunity to raid the Campbell lands. The vengeful Campbells also ravaged the lands of the Clan Maclean who had fought against them at Inverlochy and in due course the Maclean's Duart Castle surrendered.