Margaret Barclay Peerage person ID=108100 (1362–1404) Parents Sir David Barclay, 2nd of Brechin Janet Keith Children David Stewart, Master of Atholl Alexander Stewart, 1st/4th Earl of Caithness Siblings Robert Erskine, 1st Lord Erskine John Erskine, 1st of Dun Elizabeth Erskine unknown daughter Erskine Partners Walter Stewart, Earl of Atholl