User blog comment:Master Sima Yi/Assassinews 19-07-'13 — Assassin's Creed: Brahman announced/@comment-2.98.241.92-20130904151453/@comment-733050-20130904151949

We know from AC2 that the Assassins killed his son, and that's about it. We don't when the Tsars started using a Staff of Eden as the Royal Sceptre, or when Ezio's Codex came into his library. Ivan the Terrible may well have been an Assassin who killed his son for joining the Templars.