Mary Rutwenn Peerage person ID=28150 (1577–1618) Parents William Ruthven, 1st Earl of Gowrie Dorothea Stewart Children James Graham, 1st Marquess of Montrose Lady Katherine Graham Lady Lilias Graham Lady Dorothea Graham Margaret Graham Lady Beatrix Graham Siblings Barbara Ruthven Sophia Ruthven Lady Beatrice Ruthven Lady Jean Ruthven John Ruthven, 3rd Earl of Gowrie Lady Mary Ruthven Lady Isabel Ruthven James Ruthven, 2nd Earl of Gowrie William Ruthven Alexander Ruthven Patrick Ruthven Partners John Graham, 4th Earl of Montrose