William Stewart, 1st Viscount Mountjoy Anglo-Irish peer and soldier; (1650-1692) (1653–1692) Parents Catherine Newcomen Sir Alexander Stewart, 2nd Bt. Children Catherine Stewart Mary Forbes, Countess of Granard William Stewart, 2nd Viscount Mountjoy Charles Stewart Alexander Stewart Siblings unknown son Forbes unknown son Forbes Arthur Forbes, 2nd Earl of Granard unknown son Forbes unknown son Forbes Lady Catherine Forbes Partners Mary Stewart, Viscountess Mountjoy
