Facts and Events
John Steuart, founder of this family, was a son of King Robert II. There is a tradition that his mother's name was Leitch.
About the year 1385, the king erected the islands of Bute, Arane, and Cumbrae, with their pertinents, into a county, and conferred the office of heriditary sheriff thereof on John Steuart, his son, with a considerable grant of land. This grant was subsequently confirmed by King Robert III, by charter, dated 11 Nov. 1400. He married Jean, daughter of Sir John Semple of Eliotstoun, and had issue: James, his heir; William, ancestor of the Stewarts of Fennock; Robert; John; and Andrew, ancestor of the Stewarts of Rosland.