What is the title of the 2011 Assassin's Creed game starring Ezio in Constantinople?

Assassin's Creed: Revelations is the 2011 Assassin's Creed game starring Ezio in Constantinople.

Revelations follows Ezio Auditore as he travels to Constantinople, the capital of the Byzantine Empire, in search of Altaïr's seals. The story is set mainly in the early 16th century, during the reign of Ottoman Sultan Bayezid II. Ezio becomes involved with local Assassins and the succession struggle between Bayezid's sons.

The game also continues Altaïr's story through playable memory sequences and concludes major parts of Ezio and Desmond's arcs. Constantinople, now Istanbul, is divided into districts and includes landmarks such as Hagia Sophia and the Galata district.

Brotherhood is set primarily in Renaissance Rome, while Assassin's Creed II covers Ezio's earlier years across several Italian locations. Revelations is therefore the specific title linking Ezio's Constantinople campaign with the final major chapter of Altaïr's life.