Category: Cultural, Religious
Type: Museum, Church
Location: Cankurtaran, Topkapı Sarayı, Fatih
Date: 532
Designer: Unknown
Period: Eastern Roman Empire
Photos: Visit Istanbul (visit.istanbul), Kaan Çorbacı
Hagia Irene, situated in the outer courtyard of Topkapi Palace, is one of the oldest Byzantine churches in Istanbul, originally commissioned by Emperor Constantine I in the 4th century on the site of a former pagan temple. Following its destruction during the Nika Revolt in 532, the structure was rebuilt by Justinian I as a domed basilica and later underwent significant restoration by Constantine V after an earthquake in 740, which gave it its current architectural form. Architecturally, it is unique for being the only Byzantine church in the city that retains its original atrium and for its prominent synthronon—a rare surviving example of tiered semicircular seating for clergy in the apse. Unlike many other Byzantine structures, Hagia Irene was never converted into a mosque after the Ottoman conquest; instead, it served as an armory and eventually became the first museum of the Ottoman Empire, preserving its distinct character and an iconic, simple black mosaic cross from the Iconoclastic period within its central dome.
