Cowal from Cowal, with the aid of the Campbells (who were based nearby at Loch Awe), and eventually defeated Balliol. De Bruy's son gave Carrick Castle to the Campbells, while, after spending some time as a direct Royal possession, Dunoon Castle was handed to them by James III, who made the Campbells its Honorary Keepers. During the civil war between Royalists and Puritans, the Campbells had sided with the Puritans, so following their defeat at the Battle of Inverlochy, Clan Lamont took the opportunity to push back the borders of Campbell control. Predictably, in 1646, the Campbells took revenge, and overran
Cowal the Kilfinan peninsula, and on the east, the Toward peninsula, which is also isolated from the north of Cowal, by the Holy Loch. The small central peninsula is divided from the Kilfinan peninsula by Loch riddon, and the interjection of Bute, and its Kyles. Cowal's underlying geology is made up largely of resistant metamorphic rocks, but south of the Highland Boundary Fault part of the Toward peninsula is composed of sedimentary rocks. The landscape is mountainous, the high ground dominated by moorland, peat mosses and the forest that often extends down the sides of the sea lochs to the water's