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Stoudios Monastery (now Imrahor Mosque in Istanbul)

5 May 2025 by Serhat Engül

This article is about Monastery of Stoudios, the most important monastery in Eastern Roman (Byzantine) history. Founded by a Roman aristocrat, the monastery had an important place in the political history of Constantinople.

The church, which formed the core of the monastery, was dedicated to John the Baptist. Monastery of Stoudios, which was converted into a mosque under the name of Imrahor Mosque during the Ottoman period, was destroyed by earthquakes and fires.

In order to explain the history of the Monastery of Stoudios from a broader perspective, I will briefly explain the rise of Christianity in Roman politics. It will be a little long article, but I will have touched on many things about the history of Constantinople.

Table of Contents

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  • Polytheism and Emperors in Rome
  • From Paganism to Monotheistic Religion
  • The Most Important Monastery of Istanbul
  • History of Stoudios Monastery
  • Architecture of Stoudios Monastery
  • Imrahor Mosque in the Ottoman Period
  • Conclusion

Polytheism and Emperors in Rome

In ancient Rome, in order to gain political power, it was necessary to win military victories. This was a tradition that began in the Republic period, before the Roman Empire was founded. It would be useful to talk a little about the period of Julius Caesar as an example.

Julius Caesar was one of three consuls that ruled Rome during the First Triumvirate. With his legions, he organized military expeditions to the barbarian tribes in the north. His victories in Gaul and Britain made him invincible.

The soldiers in the Roman legions he ruled for years worshiped him. Fearing that Julius Caesar would bring the end of the Republic, the Roman Senate killed him with an assassination.

Octavius, the adopted son of Julius Caesar, did what the Senate feared. The Roman Empire, the most powerful state of the Antiquity, was established. Octavius became the first emperor of Rome under the name Augustus.

The imperial system has continued successfully for many years. The generals, who were blessed by the legions, seized the administration and caused chaos for some periods. For example, emperors changed frequently during the 50-year period between 235 and 285.

There was a polytheistic pagan belief in the Roman Empire and emperors were declared gods by the senate. The political might of the emperors was supported by a sort of shield of holiness. They didn’t have to get approval from anyone for what they did.

From Paganism to Monotheistic Religion

Emperor Leo I wearing the crown from the Patriarch of Constantinople

What triggered the change of this system was the reign of Emperor Constantine. Constantine I, who came to the throne after the Tetrarchy Rule, made major reforms. First of all, he moved the capital from Rome to Constantinople. Then he took strong steps to change the religion of the state.

Constantine abandoned the polytheistic pagan religion, and accelerated the transition to monotheistic religion. By adopting Christianity, he equipped Rome and Constantinople with churches. From this point on, the emperor’s divinity would end and he would have to share his authority with the clergy.

The transition to the new order was not easy in the Roman Empire. The change that began in the reign of Emperor Constantine would be completed in 50 years. By the time of Emperor Theodosius, there were important clergymen in many religious centers of the empire.

The first incident in which clerics overshadowed the authority of the emperors occurred in 393. Emperor Theodosius, who brutally suppressed the uprising in Thessaloniki, killed 7000 people.

The Massacre of Thessalonica, which was against Christian values, was condemned by the clergy. Pious Theodosius, who regretted what he had done, wished forgiveness before Saint Ambrose (Bishop of Milan). This incident was a milestone in Roman history.

An archbishop was appointed to each of the religious centers of the empire, Rome, Constantinople, Antioch, Jerusalem and Alexandria (this system is called Pentharcy). The influence of these clergy in the administration increased day by day.

Thus, the coronation was no longer in the form of legions carrying emperors on their shields. Instead, bishops would bless the emperors in the name of God (representative image can be seen above).

Eastern Roman Emperor Leo I was the first ruler to be crowned by the Patriarch of Constantinople. From that incident onwards, the emperors had to share their authority with the clergy. Throughout the Middle Ages, the struggle for power between emperors and clergy never ended.

The Most Important Monastery of Istanbul

The main reason I made such a long introduction was to tell you how Christianity got stronger over time in the Roman Empire. In this process, The Church gained the power to give way to state policies.

One of the most influential religious institutions of the Eastern Roman Empire was the Stoudios Monastery. The abbot of the monastery had the greatest authority after the Patriarch of Constantinople.

If we consider that the most powerful clergymen in the Middle Ages were “The Pope” in Rome and “The Patriarch” in Constantinople, we would understand the political power of the Stoudios Monastery.

Among the 80 monasteries in Constantinople, Stoudios Monastery was ranked first. The church, dedicated to John the Baptist, is also referred to as “Monastery of Saint John the Forerunner” in some sources.

History of Stoudios Monastery

Stoudios Monastery, a Byzantine church, is now known as the Imrahor Mosque

The Stoudios Monastery dates back to the fifth century and is the oldest surviving religious structure from Constantinople, albeit in disrepair.

It was built in 462 by Flavius Studius, the Eastern Roman consul. Studius, a wealthy statesman, built the church on his land. Devoted to St John the Baptist, the church also had his relics.

The Stoudios Monastery was located somewhere between the Forum of Arcadius and the Golden Gate. The Golden Gate, the most important gate opening to the city from the of Theodosian Walls, was the monumental gate used by the emperors.

A monastery was added next to the church built by Flavius Studios. The monastery, where a thousand monks lived, had self-sufficient facilities. Farming was carried out in the monastery garden so that enough food was provided to the monastery.

The monastery, which trained prominent clergymen, became an important political power within the Byzantine Empire over time. The monastery had peaked its power under the leadership of Theodore the Studite. He was the leader of those who opposed Byzantine iconoclasm.

In the Byzantine Empire, the emperors or members of the dynasty who were deposed were forced to live the monk life. Sometimes the emperors who were overthrown by their rivals took refuge in monasteries with their own consent to protect their lives. Stoudios Monastery shielded emperors such as Michael V Kalaphates, Isaac I Komnenos, and Michael VII Doukas.

Like many buildings in Constantinople, the Stoudios Monastery suffered great damage during the Fourth Crusade (aka Sack of Constantinople). The Latins, who plundered the city, stole the relics of John the Baptist, the church’s most important sacred relic.

After this incident, it took 57 years for the Byzantines to recapture Constantinople. When the Byzantines finally took back their capital in 1261, they restored the Studios Monastery in 1290.

Architecture of Stoudios Monastery

The Church of the Stoudios Monastery is located in the Yedikule district of Istanbul today

Monastery of Stoudios was built in early Christianity. Like all early Roman-Byzantine churches, it was inspired by the Basilica plan. However, it was possible to see the traces of Greco-Roman architecture, as it was built in an era where Ancient Art was still present.

Columns supporting the church, a three-nave basilica, had majestic column capitals in the Corinthian order. These column heads, decorated with very elegant motifs, are still standing despite all earthquakes and fires that damage the structure.

Imrahor Mosque in the Ottoman Period

The monastery was converted into a mosque during the reign of the Ottoman sultan Bayezid II. The task of turning the monastery into a mosque was given to Imrahor Ilyas Bey.

It was opened to worship after the renovations in 1486. The title “Imrahor”, which means the person responsible for the Sultan’s stables, remained the name of the mosque in the local language.

The fame of the Stoudios Monastery also attracted the attention of the Ottomans. They built a Tekke (Muslim Monastery) next to the mosque and made those who dedicate their lives to worship live here.

The Imrahor Mosque was damaged by earthquakes and fires over time. An earthquake in 1766 weakened the foundations of the building. Due to the fire in 1782, the columns on the right side of the building were destroyed. With the roof collapsing in 1908, it became completely unusable.

The Stoudios Monastery, which has a history of approximately 1600 years, is still known worldwide. The walls surrounding the building are still standing. However, the building is closed to visitors for security reasons.

Conclusion

According to the new news coming in 2022, the restoration of the Imrahor Mosque (former Studios Monastery) has started. It is great news that such an important structure in Istanbul’s history will be rebuilt!

I reorganize the pages on this site several times a year and try to keep it as up-to-date as possible. I will also share with you the new information I have obtained about the restoration work carried out at the Studios Monastery (also known as Imrahor Mosque).

If you are interested in the history of Istanbul, you can find many articles related to these subjects on the blog page of this site. For example, if you are interested in Byzantine structures in Istanbul, you can find the related article from here.

Stoudios Monastery (Imrahor Mosque) by Serhat Engul

Filed Under: HISTORY

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About Serhat Engül

Hello explorer of Istanbul! This is Serhat Engul. I am a licensed TOUR GUIDE IN ISTANBUL. I offer PRIVATE HALF DAY TOUR which includes a visit to the Hagia Sophia, Blue Mosque, Hippodrome, Basilica Cistern and the Spice Bazaar. This is a fantastic option to see some of the ICONIC LANDMARKS in the whole of Istanbul and you’ll receive plenty of background information on each location to enlighten you. You may see the details of this tour on the HOMEPAGE of the blog. I wish you a wonderful trip!

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blankHello, I'm Serhat Engul. I am a licensed tour guide operating in Istanbul. I do walking tours in Istanbul focusing on Roman, Byzantine and Ottoman history. If you want to join a private guided tour in Istanbul, you can check out my references and tours from ABOUT page. Read More…

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