This West Highland family descends from Sir James Stewart of Pierson who was descended from the 4th High Steward of Scotland. For a time they were Lords of Lorn, and were of importance in their Western territory. They were Royalists and fought valiantly for the Royal Stewarts. Duncan Stewart, 2nd of Appin, was Chamberlain of the Isles to King James IV. They fought under Montrose at the Battle of Inverlochy, and in the Jacobite army at Sheriffmuir in 1715. During the 1745 Rising the clan served in Prince Charlie's army. The 9th chief sold the estate in 1765.