Church of the Virgin of the Pharos

The Church of the Virgin of the Pharos (Greek: Θεοτόκος τοῦ Φάρου, Theotokos tou Pharou) was a Byzantine chapel built in the southern part of the Great Palace of Constantinople (today Istanbul Turkey), and named after the tower of the lighthouse (pharos) that stood next to it. It housed one of the most important collections of Christian relics in the city, and functioned as the chief palatine chapel of the Byzantine emperors.

The church was probably built sometime in the 8th century, as it is first attested in the chronicle of Theophanes the Confessor for 769: it was there that the future emperor Leo IV (r. 775–780) married Irene of Athens. Emperor Leo V (r. 813–820) was assassinated there. The church was located close to the ceremonial heart of the palace, the throne room of the Chrysotriklinos and the adjoining imperial apartments. Following the end of iconoclasm, it was extensively rebuilt and redecorated by Emperor Michael III (r. 842–867). As restored, it was a relatively small building with a ribbed dome, three apses, a narthex and a "splendidly fashioned" atrium. On the occasion of its rededication, probably in 864, the Patriarch Photios held one of his most famous...