One of the mosques of the Church, dating back to the Byzantine era. It was built on two Greek Orthodox churches after the conquest of Constantinople. The mosque is located in the district of Ziyrek in the province of Fateh in the European section of Istanbul.
The church was built in 1124 by order of Eirene, daughter of King of Hungary Laszlo (wife of Emperor Ioannes Komnenos II). In the late Byzantine Middle Ages as a church of the Pantocrator monastery. The church was damaged during the Latin conquest and was seized by the Catholic monks.
The monastery of Bantocrator was used as a school after the Ottoman conquest of Istanbul until the establishment of Al Fateh College schools. The mosque, which was used and protected during the Ottoman period, was heavily damaged by the earthquake of 1766. It was rebuilt during the reign of Sultan Mustafa III. A major restoration was given to the Baroque style in the building that was then in use. In 1950, the building was also in ruins, until it was restored in 1966 by the Endowments Department. During this restoration, when the wooden floor was removed, the original decorated floor was discovered. On the other hand, the Tribune of the Carré Mosque was moved to it and a place of worship was opened there. As for the remains of the old monastery, nothing remained of it except the archaeological pieces that were around it that were under the old monastery.
The mosque was built of bricks and consisted of one monolithic porch and five domes that formed the roof covering. The mosque took the name of the Ziyrek from the name of the school of Mullah Ziyrek Mohammed Effendi.
