The Dunoon massacre was a massacre that took place on the Cowal Peninsula, Scotland in 1646. Men of the powerful Clan Campbell massacred men, women and children of the Clan Lamont.
By 1646, the Clan Campbell, neighbours of the Clan Lamont, had steadily encroached the Lamont's lands. After the Battle of Inverlochy (1645), the Clan Lamont took the opportunity to lay waste to the Campbell's territory. The following year, the powerful Clan Campbell army invaded the Clan Lamont taking their Castles Toward Ascog at Castle Toward the Campbells asked for hospitality, which was given, according to custom, and then slaughtered the Lamonts in their beds finally throwing bodies down the well to poison the water should they have missed anyone. Sir James Lamont surrendered after accepting fair terms for his people, but the Campbells then slaughtered over two hundred of Lamont's men, women and children. Elsewhere, one tree was said to have carried thirty five bodies from its branches, and another thirty six men were buried alive. The two Lamont castles were decimated and Sir James Lamont was thrown into a dungeon for five years. This event became known as the Dunoon massacre.
Coordinates: 55°56′46″N 4°55′33″W / 55.9460°N 4.9257°W