In Assassin's Creed II, what is the full name of the protagonist who joins the Italian Assassins?

The protagonist who joins the Italian Assassins in Assassin's Creed II is Ezio Auditore da Firenze.

Ezio begins the game as a young Florentine nobleman in 1476. After members of his family are executed through a political conspiracy, he escapes Florence and gradually discovers the conflict between the Assassin Brotherhood and the Templars. His personal revenge develops into a broader campaign against Templar influence in Renaissance Italy.

The game follows Ezio through important locations including Florence, Monteriggioni, Venice, and the Vatican. He is trained by established Assassins such as Mario Auditore and later works with figures including Leonardo da Vinci and Niccolò Machiavelli. The surname “Auditore” is part of his fictional family identity, while “da Firenze” identifies his Florentine origin.

Ezio also appears in Assassin's Creed: Brotherhood and Assassin's Creed: Revelations, forming the central character arc of the series' Renaissance trilogy. He is distinct from Altaïr, the protagonist of the first Assassin's Creed, and from Edward Kenway, the lead character of Assassin's Creed IV: Black Flag.