The Name “Braz Saint George”
From the Church of Saint George at the Mangana, medieval writers derived the name “Braz Saint George” for the Sea of Marmara and the Hellespont. This shows how famous and respected the church was, not only in Constantinople but throughout the Byzantine world. The name attached to these important waters reflects the strong connection between the church and maritime life, as well as the influence of religious landmarks on geographical terminology in the Middle Ages The Church and Monastery of Saint George at the Mangana.
Such naming practices were common at the time. Important churches and monasteries often gave their names to nearby districts, harbors, or even seas, especially when they were well known to sailors and pilgrims.
Emperor John Cantacuzene as a Monk
The monastery of the Mangana was also closely connected with imperial history. Emperor John VI Cantacuzene, after abdicating the throne, entered religious life and became a monk in the Monastery of Mangana. Upon taking monastic vows, he received the name Joasaph.
He remained there for some time, living in prayer and reflection, before seeking a more secluded life. Eventually, he withdrew to the famous Monastery of Vatopedi on Mount Athos, one of the most important centers of Orthodox monasticism. His choice of Mangana as his first place of retirement shows the high spiritual reputation of the monastery.
Demir Kapoussi A Later Gate
Continuing southward along the walls, the next entrance encountered is Demir Kapoussi. This gate is clearly a Turkish construction, although it may have replaced an older Byzantine gate at the same location. Such replacements were common after the Ottoman conquest, as existing entrances were repaired, modified, or rebuilt according to new defensive needs.
The Substructures near İncili Köşk
A little further south, arched buttresses can be seen built against the city walls. These structures once supported the villa known as İncili Köşk, which stood within the Seraglio grounds. These massive substructures show the careful engineering used to support buildings on uneven ground close to the walls.
Within these buttresses, a channel once carried water from a Holy Spring inside the city to the outside of the walls. This arrangement allowed Christians to reach the spring even after the Ottoman conquest, without entering the fortified area Tour Bulgaria.
The Holy Spring of the Church of the Saviour
This spring belonged to the Church of the Holy Saviour, long celebrated as a fountain of healing. Its reputation for curing illness was well established centuries before the Turkish conquest. Pilgrims from many lands visited the spring, seeking physical and spiritual healing.
One Russian pilgrim, writing during the rule of the Palaiologan dynasty, exclaimed that the place resembled the Pool of Solomon in Jerusalem, a comparison that shows the deep impression the shrine made on visitors.
Continuous Pilgrimage as Proof of Identity
There can be no serious doubt about the identity of this site. The memory of the Church of the Holy Saviour was preserved through annual pilgrimages made to the spring on the Feast of the Transfiguration. These pilgrimages continued from the time of the Ottoman conquest until 1821, when access to the spring was restricted because of political unrest.
Such long-lasting popular traditions provide strong historical evidence. Even when buildings disappear, customs and pilgrimages often preserve the memory of sacred places more faithfully than written records alone.
The area south of the Mangana thus remained a place of deep religious significance for many centuries. Through churches, monasteries, holy springs, and living traditions, the spiritual landscape of Byzantine Constantinople continued to influence both geography and popular devotion long after the fall of the empire.