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Founded: early 1200sCategory: Miscellaneous historic sites in Estonia
Historical period: Danish and Livonian Order (Estonia)
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Kärkna Abbey, now ruined, was a former Cistercian monastery in Estonia. The monastery was founded before 1233 by the Bishop of Dorpat, Hermann von Buxhoeveden, and settled by monks from Pforta Abbey, of the filiation of Morimond. An early destruction by heathen inhabitants of the district is mentioned in 1234. After attacks by Russian forces from the principality of Vladimir-Suzdal and the Novgorod Republic it was rebuilt in about 1240 as a fortress surrounded by a moat and a rectangular granite wall. In 1305 it was placed under Stolpe Abbey on the Peene in Pomerania, which had joined the Cistercian order the previous year. In August 1558 the monastery was destroyed at the beginning of the Livonian War. There are remains of the foundations and of the perimeter walls.
The rectangular church was about 47 metres long, and consisted of a single nave of five vaulted bays. Unusually for a Cistercian church it also had a crypt of 10 bays containing two aisles, which was used not only as a place of burial but also as a place of shelter during hostilities. To the south of the church were attached the conventual buildings in the usual form of three ranges arranged in a square round a cloister and a central courtyard, with the chapter house in the east range.
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.