The Romanesque church tower is the oldest part of the church. It was built circa 1200. Originally it was attached to a Romanesque church, the nave and choir of which however was replaced with the presently visible Gothic parts at the end of the 13th century. The sacristy is the only non-medieval part of the church; it was built in 1866. The exterior of the church is decorated with Romanesque reliefs, re-used from the earlier church and incorporated into the Gothic structure. Inside, the choir retains traces of original church frescos.
Several of the church fittings are medieval. The baptismal font dates from the 12th century and was made by the sculptor Hegvald; it is considered one of the artist's finest pieces. The church also houses a triumphal cross from the same century. The altarpiece is also medieval but was altered in the 17th century. Most of the other fittings, such as the pews and the pulpit, date from later centuries.
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.