La Volpe's Bite

La Volpe's Bite is a sword obtainable in Assassin's Creed: Brotherhood, attributed to La Volpe. To obtain it, Ezio must complete all of the challenges set by the Thieves Guild. It maxes out all stats except for damage, making it one of the best one-handed weapons in the game. This weapon is actually Armand Bouchart's blade from Assassin's Creed: Bloodlines and Assassin's Creed II.

Trivia

 * La Volpe's Bite, like Maria's Dagger and several other weapons, is simply a renamed weapon. In Assassin's Creed II, it was called "Bouchart's Blade", and can be unlocked via interconnectivity with Bloodlines from the PSP.