Viola de' Pazzi was a member of the Pazzi family, and was the daughter of Francesco de' Pazzi, sister of Vieri and great-niece of Jacopo de' Pazzi. Shortly before his brawl with her brother on the Ponte Vecchio in 1476, Ezio Auditore da Firenze implied that he had slept with Viola, enraging Vieri and causing him to throw a rock at Ezio, which resulted in a deep scar on his lip.