The Kirchberg convent is considered to be one of the most historically important religious buildings in Baden-Wuerttemberg. It also ranks as one of the oldest, having been built in the early 13th century, and one of the first female church houses in central Europe.
The Kirchberg monastery was a convent built in 1237, on the site of a former castle. In 1245 the monastery was recognised by Pope Innocent IV. Over roughly the same period, the number of nuns entering the convent went from around ten to sixty. This rise in the population of the convent can be credited in part to the apparent surge of 'religious awareness', with more women (of every class) wanting to live the life of a nun or at least one of piety in order to ensure that they remained spiritually healthy. The convent continued its religious work for the next 500 years, despite the many changes that occurred in the area. However, after a secularisation that occurred in 1806, the monastery was virtually condemned to disuse: the nuns that were there were allowed to remain for the rest of their lives, but no more were allowed to join. The last nun left the monastery in 1865.
Today, the monastery is used as any normal church house. It is the centre of the societies of the Berneuchen Movement.
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.