User blog comment:Master Sima Yi/Assassinews 05-08-'14 – Assassin's Creed: Rogue announced/@comment-24595865-20140924195111/@comment-206.176.81.244-20140925191409

He was imprisoned in 1772 and later sent to move to the Bastille on July 2, 1789. Two days later, The soldiers took Sade to another place called insane asylum at Charenton and in 1790, he was released by the new constituent Assembly. He starting to become a writer and revolutionary politician.

My answer. It seem that Arno may meet to the Bastille (you know visiting inside the bastille) and start conversation with Sade behind the bar like this pic (a being prisioner). When later that time, Sade being released and become a clean writer man. :)