His private morals were infamous.

He encouraged by precept and example the worst vices of his age and nation, consorting with young men whom he instructed in the arts of dissolute living, and to whom he communicated his own selfish Epicureanism.

To him in a great measure may be attributed the corruption of the Florentine aristocracy in the sixteenth century.

In his public action he was no less vacillating than unprincipled in private life.

After prevailing upon Ippolito and Alessandro de' Medici to leave Florence in 1527, he failed to execute his trust of getting Pisa from their grasp (moved, it is said, by a guilty fondness for the young and handsome Ippolito), nor did he afterwards share any of the hardships and responsibilities of the siege.