Mary Stewart Peerage person ID=12560 Parents Lady Margaret Campbell James Stewart, 1st Lord Doune Children John Wemyss, 1st Earl of Wemyss Janet Wemyss David Wemyss Catherine Wemyss Isabel Wemyss Cecilia Wemyss Siblings Archibald Stewart Jean Stewart James Stewart, 2nd Earl of Moray Margaret Stewart John Stewart Henry Stewart, 1st Lord Saint Colme Partners Sir John Wemyss of Wemyss