John II, Marquess of Montferrat Marquess of Montferrat (1321–1372) Parents Argentina Spinola Theodore I Children Margaret of Montferrat Secondotto, Marquess of Montferrat Theodore II, Marquess of Montferrat John III, Marquess of Montferrat Siblings Yolande Palaeologina of Montferrat Partners Isabella I of Majorca Cécile de Comminges