Campbell Of Loudon Ancient Tartan Heavyweight 16ozClan Campbell Clan Campbell was powerful in the West of Scotland and in Argyllshire. They were known by the name of Diarmid and gained the title Lord of Lochow in the 13th century. Colin Campbell of Lochow, the ancestor of the Campbells of Argyll received a knighthood in the year 1280. The following chiefs were Earls Argyll before 1701 when William of Orange conferred a Dukedom to the 10th Earl. He was executed in 1685 over his participation during