Editing Ezio Auditore da Firenze (section)

==== Siege of Viana====

In 1507, Ezio finally located Cesare Borgia, who was leading the forces of his brother-in-law, John III of Navarre, in a siege of the city of Viana.

Ezio engaged Cesare on the battlefield, initially making an unsuccessful attempt to kill him with his Hidden Blade. Cesare made his escape towards Viana Castle, and Ezio was almost overwhelmed by Cesare's guards. Narrowly surviving an artillery strike, Ezio chased after Cesare and followed him through the village. Fighting past the battling guards, and climbing two burning siege towers, Ezio eventually reached the ramparts of Viana Castle. He made his way through another small group of guards and engaged Cesare in combat atop the city walls.

Despite a continual stream of soldiers attacking him, Ezio was able to whittle away Cesare's armor and overpower him. When Cesare angrily repeated his claim that no man could kill him, Ezio coldly replied he would leave him in the hands of Fate, and threw Cesare from the city walls to his death.

Later, a much older Ezio returned to the Sanctuary beneath the Villa Auditore to leave a clue to the password that protected the Vault's entrance, as suggested by Leonardo years previously. The clue was visible only to those who possessed Eagle Vision.