The Rożnów Castle is a complex of defensive objects, consisting of a medieval “upper castle” and Renaissance fortifications (“lower castle”). Its history dates back to the 13th century, when the Gryfita family built here a watchtower. The castle itself was probably built in 1350–1370 by Piotr Rozen. It is in the shape of a rectangle, 44 meters by 20 meters. In 1426, the castle was purchased by one of the most famous Polish knights, Zawisza Czarny, and after his death, it remained in the hands of Zawisza’s sons. In the late 15th century, Rożnów belonged to the Wydźga family, and later, to the Tarnowski family.
In the first half of the 16th century, during the Polish Golden Age, Hetman Jan Tarnowski began the construction of a fortress at Rożnów. It was planned to become one of the strongest and most modern fortresses in the Polish-Lithuanian Commonwealth, guarding southern border of the nation against the Ottoman Empire, which, after the Battle of Mohacs emerged as the dominant state in Southeastern Europe. Tarnowski’s death in 1561 put an end to these plans, and the construction was never completed.
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.