Pierre Thibault

Pierre Thibault (unknown – c. 1791) was a thief during the French Revolution.

Around 1791, he broke into the tomb of the comte de Mirabeau, the deceased Mentor of the French Assassins. Assaulting one of the tomb's guards, Thibault broke into the sarcophagus and looted it. After Thibault was identified, a team of Assassins found and assassinated him.

Reference

 * Assassin's Creed: Unity companion app