Lady Catherine Douglas Peerage person ID=109680 (b. 1629) Parents William Douglas, 1st Marquess of Douglas Lady Mary Gordon Children Barbara Ruthven Siblings Lady Lucy Douglas Lady Jean Douglas Lady Margaret Douglas Lady Isabel Douglas George Douglas, 1st Earl of Dumbarton Lady Grizel Douglas Archibald Douglas, 1st Earl of Ormond Lord James Douglas Lady Jean Douglas Lady Henrietta Douglas Lady Grissell Douglas William Hamilton, 3rd Duke of Hamilton Partners Sir William Ruthven