The city's famous patriarchal basilica, the Hagia Sophia, had already been converted into a mosque by the conquerors, so Gennadius II established his seat at the Church of the Holy Apostles. Three years later the edifice, which was in a dilapidated state (in 1461 it was demolished by the Ottomans to make way for the Fatih Mosque),Müller-Wiener, Wolfgang (1977), Bildlexikon zur Topographie Istanbuls - Byzantion, Konstantinupolis, Istanbul bis zum Beginn d. 17 Jh. (in German), Tübingen, Wasmuth , 406 was abandoned by the Patriarch, who moved again to the Church of the Pammakaristos.
The city's famous patriarchal basilica, the Hagia Sophia, had already been converted into a mosque by the conquerors, so Gennadius II established his seat at the Church of the Holy Apostles. Three years later the edifice, which was in a dilapidated state (in 1461 it was demolished by the Ottomans to make way for the Fatih Mosque)Müller-Wiener, Wolfgang (1977), Bildlexikon zur Topographie Istanbuls - Byzantion Konstantinupolis, Istanbul bis zum Beginn d. 17 Jh. (in German), Tübingen, Wasmuth , 406 was abandoned by the Patriarch who moved again to the Church of the Pammakaristos.