Frauenchiemsee monastery was founded in 782 by Tassilo III, Duke of Bavaria. After the destruction of the Hungarian incursions, the monastery"s heyday was between the 11th and 15th centuries. The monastery buildings were rebuilt between 1728 and 1732. In the course of the German Mediatisation the monastery was secularised between 1803 and 1835. King Ludwig I of Bavaria rebuilt the Benedictine monastery in 1836 under the new requirement that they should pay for the education of 'fallen women'; a reform school existed on the site until 1995.
Frauenchiemsee along with its sister island Herreninsel is one of the main tourist attractions on the Chiemsee, and is famous for the Kloster Liquor spirit, which is produced by the nuns.
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.