Ferrante d'Este

When Charles invaded Italy, Ferrante decided not to follow the French army to Naples but remained in Rome, spending his regular allowance from his father dissolutely.

All the sources of the time agree in describing him as a beautiful young man of good intelligence, and he was even compared to Saint George.

Ferrante, Marco da Martinengo, Gurlino Tombesi and Filippo Albanese defended Pisa against the Florentine army.

[1] In 1502 the duke of Ferrara ordered him to take possession of Cento and Pieve, where pope Alexander VI had transferred to the house of Este.

At the end of 1504 Ippolito came to Ferrara during his father's illness and carried off Rainaldo, locking him in the Rocca del Gesso, a fortress belonging to Giovanni Boiardo, count of Scandiano.

[1] Ferrante spent the rest of his life in prison, dying aged 63, after 34 years' imprisonment and with no visits from any family members.

Miniature by Ferrante d'Este from the Historia Ferrariae by Pellegrino Prisciani , book VII (in ASMo, library manuscripts, 131, c. 2v). It would seem from this that his hair tended to blond, as it did for his brother Sigismund and many of his paternal uncles.
Confrontation of the Este brothers' medals: Isabella , Alfonso , Ferrante, Ippolito and Sigismondo had inherited the typical Este nose of their father; Beatrice the slightly upturned one of her mother. Furthermore, all were dark-haired, except Ferrante and Sigismondo, who had recovered, as it seems, the traditional blond of the Este.