What is the name of Ezio’s sister in Assassin’s Creed II?

Claudia Auditore is Ezio’s sister in Assassin’s Creed II. She is the daughter of Giovanni and Maria Auditore and the sister of Ezio, Federico, and Petruccio.

After the Auditore family is forced out of Florence, Claudia helps manage the family’s affairs. In Assassin’s Creed Brotherhood, her role expands significantly: she becomes involved in running the brothel known as La Rosa in Fiore and can eventually join the Assassin Brotherhood.

Claudia is sometimes confused with Maria Auditore, who is Ezio’s mother, or with Cristina Vespucci, a separate character connected to Ezio’s earlier life. Katerina Sforza is another important Renaissance figure in the series, but she is not an Auditore sibling. Claudia’s development is one example of the series giving supporting characters larger roles across multiple games.