Federico Auditore da Firenze
- "It is a good life we live, brother."
- ―Federico, to Ezio
Federico Auditore da Firenze is the brother of Ezio. Federico is the oldest son of Giovanni. He is sharp and funny and likes to tease his little brother Ezio, but won't tolerate that someone else harms him. He started his training as an Assassin with his father before Ezio, but he doesn't know it. He is portrayed by Jesse Rath in both Assassin's Creed II and Assassin's Creed: Lineage and is voiced by Elias Toufexis.
Biography
Assassin's Creed: Lineage

Federico Auditore is a Florentine young nobleman living during the 15th century in Italy: the Renaissance. He is one of the sons of Giovanni Auditore, an Assassin.
Assassin's Creed II
Frederico first appeared during his brother Ezio's fight with another member of a noble family, Vieri de' Pazzi. He has proven to be an excellent fighter and it is probable that he also taught Ezio free running. He later taught Ezio how to steal money from defeated enemies. It is said that Federico works in one of the Medici banks, but was eventually removed from the payroll due to his slack personality. Federico is executed along with his father and his brother Petruccio at the beginning of the game, victim of a conspiracy.