Gornja Radgona Castle was built sometime between 1147 and 1182, and served as an important fortress on the border of Styria with Hungary. The town of Gornja Radgona grew up at the base of the hill upon which the castle is built. The castle is mentioned in 1265 as having 40 subservient villages with 355 farms.
In the late 15th century it was the property of one Hans von Stutenberg, who joined Andreas Baumkircher in a rebellion against Emperor Frederick III. When the rebellion failed, the emperor seized the castle. In 1479 it was occupied by troops loyal to Matthias Corvinus who kept control of the castle until Corvinus' death in 1490. Subsequently it was owned by the emperor but leased to different castellans for a long time. In the late 16th century, it underwent a thorough reconstruction.
In 1623 Emperor Ferdinand II sold the castle to Hans Ulrich von Eggenberg. It remained within the Eggenberg family until 1717, when it befell Leopold, count of Herberstein through marriage. In 1789, he sold it to the count of Wurmbrand and it then stayed in the same family until 1914. In 1931, Slovenian authorities took over the castle itself; it has since served a number of purposes. It was damaged in 1945 during World War II but later repaired. It is today rented out and used as a private residence.
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.