The first document to mention the castle in Carovignot dates back to 1163. Since then, the fortress fell in the hands of several rulers, the Normans of Geoffrey III of Montescaglioso, the Swabians in 1194 and the Angevines in 1306. In 1382 it passed to the prince of Taranto Raimondo del Balzo Orsini who then bequeathed it to his wife, queen Maria of Enghien, countess of Lecce.
The present appearance of the castle is due to recontruction works carried out between 1300's and the 1400's on a previous building. The rare triangular plan features angular towers connected to each other by curtain walls. The whole upper level is slightly jutting, while the walls are thickly crenellated. The curvilinear tower further amplifies the impression of a military building and unveils the Senese influence of the architect Francesco di Giorgio Martini.
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.