The Castello di Santo Stefano is an important coastal fortress outside the city of Monopoli in the Italian region of Apulia. Throughout the Middle Ages it was an essential component of the city's complex and articulated defense system.
The castle, which was built in 1086 at the behest of Goffredo, Count of Conversano, is located on a peninsula between two bays of the Adriatic Sea that form two small natural harbors. Since there is a fresh water spring there, a Benedictine monastery settled there; the friars gave the castle its name because there was a relic of St. Benedict there, which was brought from Monopoli to Putignano on December 26, 1365 to protect it against the constant attacks of the Turks and pirates To defend.
Around the end of the 13th century the Johanniter decided to go to the abbey relocate by re-fortifying the old coastal fortress. They created a moat that is still visible today and prepared the bays on both the left and right of the monastery fortress for ships to dock. In practice, in the time of the Greeks or the Greek Orient, the monastery fortress became a necessary stop for those traveling by ship from Bari to Brindisi. In addition to having two bays for mooring, there was the possibility of repairing several ships at the same time and equipping them with everything they needed for the journey to the Holy Land. The surrounding area was incorporated into the chapter of Monopoli Cathedral in the 13th and 14th centuries. With this voluntary annexation, the abbey with the lands and the castle was the first city in Apulia to come under the administration of Bourbon-Sicily.
The building has a quadrangular plan and has a large courtyard inside, with an old well. There are a few parts which date back to the Middle Ages, such as the altar and the portal of the church, of the 13th century, with a precious low-relief in the lunette which represents the Saints Stefano and Giorgio.
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.