 Bessarion’s reputation as an expert in matters of Aristotelian and Scholastic philosophy is exemplified by his role as mediator in a quarrel over the future contingents between two theologians from Leuven, Henry of Zomeren and Peter de Rivo. From 1469 until his death, Bessarion played an important role in this controversy not only because he had once been a patron of de Zomeren himself, but also because the Cardinal had gathered around him several skilled Scholastic philosophers, including Francesco della Rovere (soon to be Pope as Sixtus IV) and Fernando de Cordoba, both of whom took part in the dispute. This was not the only circumstance in which Bessarion and members of his entourage took part in Scholastic disputes. For all these reasons, the case of Bessarion calls into question the simplistic opposition between Aristotelian Scholasticism and a purely Platonic Humanism dear to past scholarship, showing instead the blurred lines between these traditions (see, e.g., Monfasani 2016b). Even the In calumniatorem Platonis, a text consecrated even from its title to the defense of Plato, was no less the result of this ambiguous relationship between Humanism and Scholasticism, between Platonism and Aristotelianism.