Born in Florence to a devout family with strong ties to the Templar Order, Grazia was inducted into the Templars at a young age. She was trained in combat and eventually earned the title of Inquisitor, though she became disturbed by the truths she learned about her Order. After an atrocious act was requested of her, Grazia defected and went into hiding for years.
Wanting to atone for the acts she had committed, Grazia began tentative communications with the Assassin Brotherhood, who she would eventually join. She both worked providing intelligence about the Templars and as a soldier on the frontlines of the Assassin-Templar War.