 In the 15th century a tower house was built by the Lords of the Isles, which later passed into the hands of the Kennedy family.The lands of Greenan were forfeited by John, Earl of Ross and Lord of the Isles in 1476 for treason against James III.In 1493 James IV granted the Lands of Greenan to William Douglas, son of Archibald, Earl of Angus.