Ambrogio Traversari, also referred to as Ambrose of Camaldoli, was an Italian monk and theologian who was a prime supporter of the papal cause in the 15th century. He is honored as a saint by the Camaldolese Order.

Manuel Chrysoloras was a Byzantine Greek classical scholar, humanist, philosopher, professor, and translator of ancient Greek texts during the Renaissance. Serving as the ambassador for the Byzantine emperor Manuel II Palaiologos in medieval Italy, he became a renowned teacher of Greek literature and history in the republics of Florence and Venice, and today he's widely regarded as a pioneer in the introduction of ancient Greek literature to Western Europe during the Late Middle Ages.