Saint Waltrude Collegiate Church dates back to 1450, and the origin of the famous chapter of noble canonesses that seated for centuries inside this church. The chapter played an important part in the local history, all of the Canonesse were familymembers of important noble houses. Antoine-Joseph Fetis, titular organist, taught his eldest son François-Joseph the first steps of the practice of organ music.
Inside the church important graves can be found amongst them Antoine de Carondelet and Alice of Namur.
The exterior of the church is a fine example of Brabant Gothic architecture, parts are built by Matheus de Layens. However in the 17th century the works stopped and the building was never completely finished. The interior contains important artworks, including sculptures by Jacques du Broeucq and paintings by Peter Paul Rubens, Floris de Vriendt, Theodoor van Thulden, Otto Venius and Michiel Coxie.
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.