Assassin's Creed 2 Episode 3: The Execution

"Returning home, Ezio found his house ransacked, his father and brothers missing, and his mother and sister hiding."
"Climbing the Palazzo and speaking to his father through the window of his cell, Ezio was instructed to find a hidden chest in his office, take everything out of it, and deliver a sealed letter to Uberto Alberti, Gonfaloniere of Florence and a close friend of the Auditore family."
"December 29 1476, Ezio made his way to the Piazza della Signoria, where Uberto presided over the execution of his family."