As Italy was and remains the land of pasta, we conclude that the Italians are psycho pasta.
In 1502, as in 2013, must adopt the rules to survive; Caesar Borgia would just kill those who wanted to kill him.
He became the Prince model, just for his great ability to kill his opponents and survive them.
It was long believed that Bosch had painted demonic creatures; in fact, he had just taken his contemporaries models.
The Machiavelli of the novel is somewhat Machiavellian and too lost in his books; about the Leonardo da Vinci, it is incomplete as his works.
Machiavelli describes in this book, has the distinction of talking to himself as in dreams. He believes interrogate a particular famous person, when he actually talks to his conception of this character. (See Hervey de Saint Denys for an illustration)
The novel bored quickly because it does not reveal anything as a pretty woman dressed remaining after we promised much.
The last word comes back to Nietzsche: "my contemporaries judge the past in the light of this, and they are horrified by what her laugh their ancestors.