St. Thomas Church is associated with a number of well-known composers such as Richard Wagner and Felix Mendelssohn Bartholdy, but mostly with Johann Sebastian Bach who worked here as a Kapellmeister (music director) from 1723 until his death in 1750. Today, the church also holds his remains. Martin Luther preached here in 1539.
There has been a church at the current site of the Thomaskirche at least since the 12th century. Foundations of a Romanesque building have been discovered in the choir and crossing of the current church. Between 1212 and 1222 the earlier structure became the church of the new St. Thomas Monastery (Stift) of the Augustinian order.
The current building was consecrated by Thilo of Trotha, the Bishop of Merseburg, on 10 April 1496. The reformer Martin Luther preached here on Pentecost Sunday in 1539. The monastic buildings were demolished in 1541 following the monastery's dissolution. The current church tower was first built in 1537 and rebuilt in 1702. Chapels added in the 17th century and an ante-building along the northern front of the nave with two stairways were removed at the end of the 19th century.
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.