User blog comment:Master Sima Yi/Assassinews 19-03-'14 – Two Assassin's Creeds for 2014?: Unity and Comet/@comment-1379990-20140730183153/@comment-5174994-20140801170130

And the game is set in a time where that happened a lot, Sima. Besides, if Arno left the family he's no longer related. He could renounce his relation to them.

I've had another idea about the pocket watch. Couldn't it be that Arno's real father made it with his first name initial & Arno's? The other letter may just be Arno's father's name.