What was the birth name of the Assassin later known as Ezio Auditore in Assassin's Creed II?

The Assassin later known as Ezio Auditore was born Ezio Auditore da Firenze.

Ezio is the central historical character of Assassin's Creed II and returns in Brotherhood and Revelations. The Italian phrase “da Firenze” means “from Florence,” identifying his connection to the Renaissance city where his family lives at the beginning of Assassin's Creed II. The full name is commonly shortened to Ezio Auditore in discussions of the series.

His transformation begins after members of his family are executed as part of a political conspiracy. Ezio then trains with the Assassins and spends decades opposing Templar forces across Italy and beyond. His trilogy is the longest continuous protagonist arc in the main series.

The alternatives in this question resemble Italian place-name constructions, but they are not Ezio's canonical name. “Auditore di Firenze” is especially easy to confuse with the correct “da Firenze.”