Ponte Vecchio is the name of the famous bridge in Florence where the Duke of Este first traded his prized balsamic vinegar of Modena, and is the name of the brand created for Zia Pia by Acetaia Leonardi, a family producer of authentic balsamic vinegar of Modena since 1807. Balsamic vinegar is a mythical and prized product that imparts flavor and complexity to most any dish. All-natural with no colorants, sweeteners, additives or preservatives.