In Assassin's Creed Revelations, which Ottoman city is Ezio's main setting?

In Assassin's Creed Revelations, Constantinople is Ezio Auditore's main setting.

Ezio travels to Constantinople, the capital of the Ottoman Empire, while searching for keys connected to Altaïr Ibn-La'Ahad's archive at Masyaf. The city provides the central open-world environment for his final major adventure and is divided into districts that can be contested and improved.

The story features Ottoman political figures including Sultan Bayezid II, Prince Suleiman, and the Templar leader Manuel Palaiologos. It also introduces the Ottoman Assassin Yusuf Tazim, who helps Ezio navigate the city and strengthen the local Brotherhood.

The game's Constantinople setting is historical, although modern readers may know the city primarily as Istanbul. During the period depicted, the name Constantinople was widely used. Revelations also includes Cappadocia and Masyaf, but Constantinople remains the main urban setting and the location most associated with Ezio's final journey.