Constantinople is the historical city Ezio Auditore mainly explores in Assassin’s Creed Revelations.
Revelations sends the older Ezio to Constantinople, the capital of the Byzantine Empire, during the early sixteenth century. He travels there to locate keys connected with Altaïr Ibn-La’Ahad’s legacy and becomes involved with the city’s Assassin network and political tensions.
The game’s Constantinople includes districts such as Galata, Constantine, Bayezid, Imperial, and the southern district. Ezio also visits Cappadocia, an underground city used by the Templars. The setting lets the game connect Ezio’s story with Altaïr’s through memory sequences and the Masyaf keys.
Modern references often call the city Istanbul, but Constantinople is the historical name used for the game’s setting. Istanbul became the city’s official name in the twentieth century, long after the period portrayed in Revelations.