Margaret Stewart, Countess of Angus Scottish countess (b. 1355) Parents Margaret Sinclair Thomas Stewart, 2nd Earl of Angus Children George Douglas, 1st Earl of Angus Siblings Sir Walter St. Clair John St. Clair of Herdmanston Elizabeth Stewart Thomas Stewart, 3rd Earl of Angus James St. Clair William Stewart Partners Thomas, Earl of Mar William Douglas, 1st Earl of Douglas
