Moscow
Moscow is the capital city of Russia. When the Assassin Ezio Auditore stayed in Rome, Moscow was a location where Ezio could send his Assassin apprentices to for contract assignments.
History
Renaissance
During the Renaissance, a team of Apprentices was sent to Moscow to keep an eye on Ivan III Vasilevich. They started with investigating the dissapearance of Pietro Antonio Solari, a fellow Assassin who had dissapeared while working as an architect on the Kremlin. They discovered a vault with records that revealed Solari had been murdered by another Italian, only known as "Aristotele".
They decided their best option was try finding Aristotele and start their search at the Kremlin. After having questioned several people, they were directed towards a church, where they eventually found the man they were looking for. He revealed to them that Ivan was close to discovering their secret Order and that he had been forced to deceive him.
The Assassins then decided to make Ivan belief in a cult that didn't exist, the Strigolniki Sect. They forged documents and spread them among the population, causing paranoia in the citizens of Moscow. Ivan soon gave up on his investigation into the Assassin Brotherhood and started investigating the Strigolniki Sect instead.
Modern times
As of 2012, an Assassin team was located in the city. They were chasing a lead on a potential Piece of Eden, and a few of their suspicions related to it were confirmed by William Miles.