Ezio Auditore da Firenze is the main protagonist of Assassin's Creed II, Revelations and the ancestor of Desmond Miles.
Ezio was born in Florence on 24 June 1459, as the second son of Giovanni and Maria Auditore. He appeared to be stillborn, but, after some words of encouragement from his father, he began to cry, leading his father to call him a "fighter".
Up until the age of 17, Ezio lived a life of luxury amidst the members of the Florentine noble class; he was apprenticed to the renowned banker Giovanni Tornabuoni, who worked alongside Giovanni Auditore's banking business, but was all the while unaware of his father's allegiance to the Assassin Order.
In the year 1476, Ezio, his older brother Federico, and friends of the family fought with Vieri de' Pazzi and his gang. Just before the fight, Ezio received a gash down across his lip – caused by Vieri throwing a stone – which would scar, and remain for the rest of his life.
During the brawl, Ezio pummeled several members of the opposing gang, but Vieri managed to flee the scene before Ezio could do anything to him. After looting several people left unconscious by the fight, the two brothers ran across the rooftops to find Ezio some medical help for his injuries.