|“||I'm sorry, were you hoping for a confession?||„|
|~ -Vieri's last words.|
He was an enemy of Ezio because Ezio's father used evidence against Vieri's father. The two always seemed to fight each other. Vieri's first big appearance is when Ezio, Maria and Claudia try to escape Firenze. He ambushes them an threatens to kill them, but Mario Auditore comes to the rescue. The next time they meet, Ezio has been training as an assassin for a year and teams up with his uncle to kill Vieri. He is seen speaking to his father, his great uncle, and the Templar Grandmaster about the plot to kill the Medici brothers. Vieri decides to stay in Tuscany to kill Mario. However, Ezio went to assassinate Vieri, and after several fierce battles they face off on top of a tower. Ezio wins, but Vieri won't give him any answers, so he starts cursing his corpse and name. He is stopped by his uncle Mario, who tells him he needs to respect the ones who have passed away.