Dobczyce Castle was first mentioned in written sources in 1362, but had been fortified since 1311. In the time of Casimir III the Great, the walls were from 5 to 9 meters thick, and the castle was a fortified stronghold. In 1398, the castle was the abode of King Władysław II Jagiełło and his wife Jadwiga. In 1473, for several months, Prince Casimir stayed here after returning from an unsuccessful expedition.
The Lubomirski family, who ruled the castle from 1585, rebuilt the Gothic fortress into a Renaissance residence in the years 1593-1594. The clocktower, chapel and fountain were added. By 1620 the castle had 70 rooms and 3 towers. In the 1960s the site was extensively excavated.
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.