The location of Przemyśl castle and the earlier settlement lay on an important river crossing on a trade route running from the Black Sea to the Baltic Sea and through the Carpathian passes, and was a site of a fortified grod belonging to the Lendians (Lendizi), who were a West Slavic tribe descended from the White Croats.
In 1018, the Polish king Bolesław I Chrobry recaptured Przemyśl and built a stone Romanesque rotunda and palatium complex. Later, Casimir III the Great was responsible for the building of a Gothic castle in 1340, of which only a gate in Ogive style survives to this day. The buildings were damaged by the invading Vlachs in 1498, and rebuilt once again for Piotr Kmita Sobieński.
Przemyśl town elder Marcin Krasicki began the reconstruction of the castle in the Renaissance style in 1616. The works were supervised by the Italian architect Galleazzo Appiani. Towers were raised and attics finished, and more housing was attached, however after Krasicki's death, the reconstruction of the castle stopped.
From 1759 to 1762, Przemyśl mayor and future Polish king Stanislaw Poniatowski rebuilt the castle, rebuilding the ruins of two towers, the wall between them, building a new castle and adding stepped buttresses.
After the partition of the Commonwealth, the Austrians stationed troops in the castle. Eventually in 1865, the castle was handed over the city where from 1884 the dramatic society Fredreum has been based. During World War I, the Austrians held two thousand Russian prisoners in the castle. More restoration of the castle was carried out in 1920, and in 1980 two corner towers and curtain wall between them were rebuilt.
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.