Ezio was born in Florence, a small but prosperous village in the land of fire on June 24 as the second son of Giovanni Auditore and Maria Nara from Konoha's Nara clan, where they also have a residence. He appeared to be stillborn, but, after some words of encouragement from his father, he began to cry, leading his father to call him "a fighter." Until the age of 13, Ezio lived a life of luxury amidst the members of the Florentine noble class, unaware of his father's allegiance to the Assassin Order.
Revenge
One day, Giovanni requested Ezio that he deliver two letters to contacts of his in the village, before retrieving the third letter from the pigeon coop not far from the house.
Ezio agreed and after two odd encounters with the people he'd delivered the letters to Ezio retrieved the note from the pigeon coop only to witness people running across the village.
Ezio returned home to find his home ransacked, his father and brother missing and his mother and sister hiding.
Learning that the guards from the village had been ordered to arrest Giovanni and his sons, Ezio made his way to the Palazzo della Signoria (the village prison) where his father and brother were held captive.
Climbing the wall and speaking to his father through the cell window, Ezio was instructed tu find a chest hidden in his office, take everything out of it and deliver a sealed letter to Uberto Alberti, the chief advisor of the village and a close friend if the Auditore family.
Doing so, Ezio found his father's assassin robes, a broken blade and a letter containing details of the plot against the village and Auditore family. Ezio brought the incriminating documents to Uberto and was assured that his family would be released the following day, when the information was presented as evidence of their innocence.
The next day Ezio returns to Palazzo della Signoria to find Uberto presiding over the execution of his family. Giovanni declared their innocence, citing the information given to Uberto add evidence but Gonfalonier, the village head denied any knowledge of such information. Ezio shouted that Uberto was lying but his efforts to prevent the execution were ultimately in vain.
Ezio could only watch helplessly from the crowd as his father and brother were hanged. When he stepped to charge the gallows to avenge his kin, Uberto ordered the village guards to kill him. At the urging of one of Giovanni's friends, Ezio fled from the place and sought shelter in a brothel run by the sister of Auditore housemaid, a courtesan named Paola.
Paola, who – unbeknownst to Ezio – was an Assassin herself, agreed to assist Ezio in his quest for vengeance, teaching him how to survive in the city as an outlaw through pickpocketing and blending in crowds. She further directed Ezio to Leonardo da Vinci to repair Giovanni's blade, though she did not notice that Ezio was being watched. After Leonardo repaired the blade, a guard banged on the door and ordered Leonardo outside before trying to beat Ezio's location from him. Ezio realized something was wrong and crept up behind the guard, assassinating him.
After Leonardo had thanked him, Ezio sought out and assassinated Uberto in the courtyard of the Basilica di Santa Croce, who was attending Andrea del Verrocchio's latest exhibit. Once he had made his way into the courtyard, Ezio attacked Uberto in a frenzied rage, stabbing him multiple times in the chest, before proudly proclaiming the survival of the Auditore family, through him.
After killing Uberto, Ezio took the documents that the Gonfaloniere had concealed from him and his father, as well as a letter from Uberto meant for his wife and son. Ezio decided that he would see to it that she received the letter, not wanting to sink to Uberto's level.
Now the most wanted man in Florence, Ezio fled the city with his mother and sister in the hopes of making their way to Konoha, his mother's birthplace stopping beforehand at the Auditore family's villa in Monteriggioni for shelter. As they neared the town, the three were accosted by Vieri de' Pazzi and his followers, but were saved by the timely arrival of Ezio's uncle, Mario Nara, and his ninjas.
Mario who was a ninja as well as an assassin, informed Ezio of the existence of the Assassins, in an obvious attempt to induct him into the Order. He spent some time teaching Ezio swordplay, and revealed that many of his ancestors, including Giovanni, were members of the Assassin Order. However, Ezio refused his ancestry, wishing only to continue his journey to Konoha, for his mother's and sister's safety, with the help of the skills Mario had taught him.
A new path
Story to be continued.
