User blog comment:Master Sima Yi/Assassinews 19-07-'13 — Assassin's Creed: Brahman announced/@comment-733050-20130914212647/@comment-6547588-20130915151111

I thought he was a pirate before he met du Casse though, and if they were both in Hornigolds crew it would explain why they're so chummy. Not to mention that "pirate mentoring" doesn't really work out so well, as Stede Bonnet found when his crew left him for Blackbeard after he let him captain them for a while.