Avanduse manor (Awandus) was first mentioned in 1494. The origins of the present-day building was a building that was erected in 1679-1684 by Tallinn master builder Gerd Vorberg at the initiative of the landowner at the time, Gideon von Fock. The building has however been heavily rebuilt since, with final changes being made by architect Rudolf von Engelhardt in 1890. Russian geographer Fyodor Litke is the most famous owner of the estate, and a plaque dedicated to his memory hangs from a wall of the manor.
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.