Giulio

Giulio was Giovanni Auditore's secretary, and worked for him in the International Bank Auditore. He is said to be always absorbed in his business. Giulio is only mentioned a couple of times in Assassin's Creed: Renaissance. He is the one who tells Ezio that his father is looking for him in order to tell him to head the pigeon coop in Special Delivery memory.

Source

 * Assassin's Creed: Renaissance