In Assassin's Creed: Revelations, Ezio visits Constantinople as an aging Assassin.
The game is set primarily in Constantinople during the early sixteenth century. Constantinople, the capital of the Byzantine Empire until 1453, was known as Istanbul by the period in which the game takes place under Ottoman rule. The story uses the city's districts, markets, waterways, and monuments as the setting for Ezio's search for Altaïr's legacy.
Revelations links the stories of Ezio and Altaïr Ibn-La'Ahad, the protagonist of the first Assassin's Creed. Ezio travels to Masyaf and Constantinople while pursuing keys connected to Altaïr's former headquarters. The historical name Constantinople is the answer used by the game and its setting descriptions, although Istanbul was the contemporary name increasingly used for the city.