Lost in the labyrinthine streets of Istanbul’s Fatih district you stand before St Ioannes Prodromos. This unassuming structure holds a history far richer than its modest exterior suggests.
St Ioannes Prodromos is more than just a building. It’s one of 36 churches in Constantinople dedicated to Saint John the Baptist. It was once part of a larger monastery. The smallest Byzantine church still standing in Istanbul it has never been thoroughly studied. Its current form is the result of a fascinating transformation.
Before the Ottoman conquest in 1453 little is known of its history. The name Troullos or Trullo likely comes from a domed palace nearby. Architectural style places its construction in the 12th century. After the conquest Patriarch Gennadios moved nuns from the Pammakaristos Monastery to the smaller nunnery of Troullos. This was sometime between 1454 and 1456.
A significant shift occurred in the late 16th century. Hirami Ahmet Pasha a former Agha of the Janissaries converted it into a mosque. This happened between 1587 and 1598 the year of his death. He also converted the Church of Pammakaristos. The nuns were expelled ending their centuries-long residence.
By the early 20th century St Ioannes Prodromos was in ruins. A meticulous restoration was undertaken and completed in 1961. It reopened for Islamic worship. Today you see the result of that restoration. The mosque has no minaret a clear distinction from many other Ottoman mosques.
Examine the building’s architecture. Notice the cross-in-square plan and the dome. The interior is lit by triple windows. Four columns support an octagonal drum which in turn supports the dome. The original columns are gone replaced during restoration with ancient ones of unknown origin. The diaconicon the area where the deacons prepared for services is now a mihrab the niche indicating the direction of Mecca in a mosque.
The story of St Ioannes Prodromos is one of resilience and adaptation. From its Byzantine origins as a nunnery to its transformation into a mosque this small building has witnessed centuries of history. Its quiet presence serves as a testament to the city’s rich and layered past. The layers of Istanbul are woven into its very stones. Its story continues to unfold within the heart of this ancient city.