There was originally a strong fortified castle Beritzholm few hundred meters from the present Bjärsjölagård Castle. It was built by Valdemar Atterdag in the 1300s and demolished in 1526. Peter Julius Coyet bought the estate from Crown in 1720. There was a lime factory in the beginning of the 19th century and two ovens still remain. The current main building was built in Rococo style in 1766 and the southern wing in 1812. The newer addition on the estate, was built in Romantic, German style in 1849-50, on a hill just south of the old castle. It is a three-story building flanked by two square towers. Today Bjärsjölagård is a hotel.
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.