User blog comment:Master Sima Yi/Assassinews 04-06-'12 — E3 hub/@comment-220.255.1.57-20120616100911/@comment-4950493-20120621054836

Well, he was the Mentor of the Assassins and they were attempting to liberate Rome from the Borgia, and Constantinople from the Byzantine Templars. So basically his aim was to purchase and own all the city's landmarks to establish more Assassin influence over the city.