Table of Contents
Introduction
For nearly 1,000 years, Hagia Sophia stood as the grandest church in the Byzantine Empire, its colossal dome soaring over Christian Constantinople.
However, after the Ottoman conquest of 1453, the addition of four towering minarets reshaped its identity, turning it from a Christian basilica into an imperial mosque.
The construction of these minarets of Hagia Sophia marked more than just an architectural modification—they symbolized the transformation of the city, the fall of Byzantium, and the rise of Ottoman power.
They were political, religious, and artistic statements, signaling that Constantinople was now the heart of an Islamic empire.
The Ottoman Conquest and the Transformation of Hagia Sophia

The Fall of Constantinople (1453) and the Fate of Hagia Sophia
On May 29, 1453, after a 53-day siege, the mighty walls of Constantinople fell to the armies of Sultan Mehmed II (“the Conqueror”). The city—once the glorious capital of the Byzantine world—was now part of the Ottoman Empire.
Hagia Sophia, which had served as the spiritual and political heart of Byzantine Orthodoxy, was immediately converted into a mosque. This was a deeply symbolic act—it signified not just the conquest of a city, but the triumph of Islam over Christianity in the region.
The First Minaret: Mehmed II’s Statement of Conquest
One of Mehmed II’s first orders was to convert Hagia Sophia into an imperial mosque. The most visible sign of this transformation was the construction of the first minaret, likely built from wood or brick, standing alongside the ancient Byzantine dome.
This initial minaret was practical—it allowed a muezzin (prayer caller) to announce the adhan (Islamic call to prayer), signifying that the building was now a house of Muslim worship. However, it was also a visual declaration of Ottoman dominance, showing that Constantinople was now a city of Islam.
The Evolution of Hagia Sophia’s Minarets
Bayezid II’s Red Brick Minaret (Late 15th Century)
Under Sultan Bayezid II (1481–1512), the Ottomans began to reinforce and expand Hagia Sophia’s Islamic identity. The first stone minaret was added during his reign, replacing Mehmed II’s earlier wooden structure.
This red brick minaret, still standing today, was built to accommodate the growing Muslim population of the city, allowing the call to prayer to be heard across Constantinople.
Sultan Selim II and the Contributions of Mimar Sinan
The final three minarets of Hagia Sophia were added under Sultan Selim II (1566–1574) by the legendary Ottoman architect Mimar Sinan. These massive stone towers gave Hagia Sophia its current iconic silhouette and were designed to match the grandeur of the structure.
Mimar Sinan, known for building the Süleymaniye Mosque, also reinforced Hagia Sophia’s structure, ensuring that the minarets were not just decorative but also helped stabilize the aging Byzantine walls.
The Unique Differences Between the minarets of Hagia Sophia

Unlike most mosques, Hagia Sophia’s four minarets are not identical—they differ in height, design, and materials. This is because they were built at different times, reflecting the changing architectural styles of various Ottoman sultans.
This inconsistency makes minarets of Hagia Sophia unique, blending elements of both Byzantine and Ottoman architecture.
The Symbolism of the Minarets: A New Era for Hagia Sophia
Declaring Hagia Sophia’s Transformation
The addition of minarets solidified Hagia Sophia’s identity as a mosque, marking a new spiritual and political reality. The towering structures proclaimed that Islam had replaced Christianity as the dominant faith of the city, just as the Ottoman Empire had replaced Byzantium.
The Call to Prayer Replacing Christian Hymns
For centuries, Byzantine hymns and chants had echoed under Hagia Sophia’s great dome. With the construction of the minarets, Islamic prayers now filled the space, and the city resonated with the adhan instead of Christian liturgies.
This shift was not just religious—it was cultural and civilizational, marking the transition from a Christian Roman capital to an Islamic imperial center.
The Crescent Moon Over Byzantium
The Ottoman crescent moon, a key symbol of Islam, now adorned the skyline of what had once been the heart of Orthodox Christianity. The fusion of the Byzantine dome with Ottoman minarets created an architectural hybrid that represented the meeting of two worlds—a blending of Roman, Christian, and Islamic influences.
The Legacy of minarets of Hagia Sophia in Ottoman Architecture
The Prototype for Future Ottoman Mosques
The combination of a massive central dome with towering minarets became the hallmark of Ottoman mosque design. Hagia Sophia’s minarets directly influenced the construction of:
- The Blue Mosque (Sultanahmet Mosque) – Built to rival Hagia Sophia, with six elegant minarets.
- The Süleymaniye Mosque – Mimar Sinan’s masterpiece, inspired by his work on Hagia Sophia.
- The Selimiye Mosque – Featuring towering, slender minarets, an evolution of Hagia Sophia’s model.
A Unique Hybrid of Two Civilizations
Unlike most Ottoman mosques, Hagia Sophia was not built as an Islamic structure—it was adapted from a Christian church. The addition of minarets created a fusion of Byzantine and Ottoman styles, making it a monument that belonged to both cultures.
Hagia Sophia’s Minarets in the Modern Era

From Mosque to Museum (1935): A Symbol of Shared Heritage
In 1935, Turkish leader Mustafa Kemal Atatürk secularized Hagia Sophia, transforming it into a museum. While the minarets remained, the call to prayer ceased, and the building became a symbol of cultural unity and historical preservation.
The 2020 Reconversion: A Return to Ottoman Tradition
In 2020, the Turkish government reconverted Hagia Sophia into a mosque, reviving the Islamic call to prayer from its minarets. This move reignited debates:
- Some saw it as a return to its Ottoman past.
- Others viewed it as a loss of its status as a shared heritage site.
- Regardless of perspective, the minarets continue to define its identity, representing both its Byzantine and Ottoman legacies.
Conclusion
Minarets of Hagia Sophia are not just architectural additions—they are historical markers of transformation, conquest, and cultural fusion.
- They symbolize the fall of Byzantium and the rise of the Ottoman Empire.
- They transformed Hagia Sophia into an Islamic imperial mosque, altering its skyline forever.
- They influenced centuries of Ottoman mosque architecture, shaping Istanbul’s famous silhouette.
Even today, whether viewed as a triumph or a transformation, the minarets of Hagia Sophia remain a powerful testament to the interwoven histories of Christianity and Islam, Byzantium and the Ottomans, past and present.





