Second son of Robert II's marriage to Euphemia Ross. Lord of Brechin until 1402, Walter Stewart acquired the earldom of Caithness [S] in that year, and that of Atholl [S] and the lordship of Methven in 1404. His main territorial ambitions centred on the earldom of Strathearn [S], which he received in life‐rent from his nephew James I in 1427. Atholl was an old man when his sons David and Alan predeceased him. Fears that James I was seeking to undermine his position in Perthshire led Atholl and his grandson Robert to organize a successful assassination plot. The king was murdered at the Perth Blackfriars (20 February 1437), but Atholl was beheaded for regicide on 26 March 1437.
Subjects: British History.