The first castle in Głogówek was built by the Piasts from the Opole line probably in the 13th century. In the years 1532-1561, the Zeidlitz family took the castle over from the previous owners; in 1561 it was in possession of the Oppersdorffs. They decided to demolish the Gothic building and replace it with a Renaissance structure which has survived - only with minor transformations - to the present day.
The first project was the upper castle with the duke’s chamber and corner towers (1561-1606); from 1606, the lower castle was developed along with a chapel. In the years 1743-1781, the sough wing of the lower castle was expanded and Baroque detailed were added; in the mid-19th century, part of the castle was rebuilt under the supervision of an architect named Gluck.
During the Swedish invasion in 1655, the castle was home to King Jan Kazimierz and his court, and in 1806 it was visited by Ludwig van Beethoven fleeing from the Napoleon’s army.In 1945 the last member of the Oppersdorff family left the castle which has ever since changed hands and has served different functions: youth hostel, regional museum, art gallery, and culture centre. Today, the building is owned by the municipality again and restoration works are underway.
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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.