It is most likely based on the abundant examples of late Roman or early Byzantine buildings that lay ruined in the Bulgarian lands.
The acropolis (280 ft) has an amphitheatre on its northern slope, and eastwards lie many remains of Byzantine buildings.
Further mosaic-floored Byzantine buildings were located to the south of the church.
During excavations in 1937 in front of this building, remains of a religious Byzantine building dating from the 5th century were found.
The church is the oldest Byzantine building in Bursa, which has been protected.
Blegen found another hint that a Byzantine building had stood on the site, in a large cutting inside the south gate.
The churches the oldest Byzantine building in Bursa, which has been rotected.
The majority of the Byzantine buildings take advantage of the foundations of earlier Roman ones.
Byzantine buildings were scattered close to each other in small settlements, and round buildings are most likely to be from the Byzantine period.
By the middle of the seventeenth century the only Byzantine building still visible was the refectory.