"It was only natural for [Rodrigo] to want his children raised as Spaniards. Although he later sent Cesare and Juan to Italian universities, they went in the company of their Spanish preceptors. Generally completed their education at one or more of the numerous Italian universities. Cesare left for the Sapienza of Perugia in 1489, when he was fourteen. Juan followed almost immediately."
β Emma Lucas, Lucrezia Borgia (2014)