Arno Victor Dorian (1768 – unknown) was a French–Austrian Assassin active during the time of the French Revolution. The son of the Assassin Charles Dorian, who was killed by Shay Cormac, Arno was adopted by François de la Serre, the Grand Master of the Templar Order in France. He was subsequently raised alongside de la Serre’s daughter, Élise.
In 1789, de la Serre was murdered as part of a coup within the Templar Order, and Arno was framed for his death. Imprisoned at the Bastille, he met the Assassin Pierre Bellec, who told Arno of his Assassin heritage. Wracked with guilt for his past failures, Arno started upon a path of redemption and thus joined the Brotherhood, working to uncover the true instigators of the revolution, while also avenging his father and adoptive father in the process.
Throughout his journey, Arno gained various allies, including the Marquis de Sade, Napoleon Bonaparte and Élise, who was now a Templar opposing the radical faction within her Order. When the Assassin Mentor Honoré Mirabeau accepted an alliance with her on behalf of the Brotherhood, Bellec poisoned him, and Arno was forced to kill Bellec in turn.
Arno and Élise later discovered that François-Thomas Germain had orchestrated de la Serre’s death and was manipulating the revolution in the Templars’ favor. After killing his subordinates, they tracked him down to the Temple in July 1794. During a final confrontation, both Élise and Germain were killed, leaving Arno depressed and cynical.
After accepting a mission from de Sade in Franciade, Arno met a young boy named Léon. Together, they discovered that Napoleon planned to use an artifact buried underneath the town to take control over France. Initially hesitant to take action, Arno eventually regained his sense of duty and decided to stop Napoleon’s plans, recovering the artifact, which turned out to be an Apple of Eden, and sending it to Egypt.