The Church of Hagia Sophia is a Byzantine church in the medieval town of Monemvasia, Peloponnese. It forms part of the wider archaeological site of Monemvasia. It was built on the upper town of Monemvasia, and was originally dedicated to Panagia Hodegetria. It is the most important monument of Monemvasia. The Venetians, who held Monemvasia for some time, used it as a Catholic church dedicated to Madonna, while during the Ottoman period it was converted into a mosque before being restored to Christian worship upon Greece's independence.
It is generally accepted that Hagia Sophia dates back to 1150, during a period when Monemvasia saw impressive economical growth and the settlement spread throughout the rock and not only on its invisible side, and is associated with the successful repulsion of the Normans in the year 1147.
During the years of the first Venetian rule (1463-1540) it came into the hands of Catholic Romans, while during the first period of Ottoman Turkish rule (1540-1690) it was converted into a mosque. During the second Venetian rule (1690-1715) it became a church again, a Roman Catholic one this time, the katholicon of a monastery dedicated to Madonna del Carmine.
In 1715 the church was once again converted into a mosque, and remained so until 1821, when Greece gained its independence; the minaret was demolished and the Greeks dedicated the church to the holy wisdom of God, hence the new and current name.
The church belongs to the so-called Epirotic octagonal-room with dome type, and is considered to be one of its finest examples. Inside the church, the fragments of murals date back to the 12th century.
The frescoes in the chancel portray scenes from the life of Saint Nicholas and are associated with the theft of the saint's relics, which were stolen by Italian merchants from Lycian Myra in 1087, who then arrived in Monemvasia's harbor while transporting them to Bari. Other surviving murals of Hagia Sophia include that of the archangels on the narthex and one of the Ancient of Days. The church also contains surviving sculptured marble decorations, an important example of 12th century sculpture.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.