The Abbazia del Cerreto is a former Cistercian monastery in the town of Abbadia Cerreto. The town is named after the abbey. The building now functions as a parish church.
The original monastery, with surrounding territory, was founded by the Benedictine order, but in 1139, the monks at the institution identifed themselves as Cistercians. By 1500, the monastery had been reduced to a few members, and the abbey church was converted into a parish church. In 1700, the monks abandoned the abbey to local priests. In 1801, the Napoleonic government expropriated all the goods and sold them to the marchese Giorgio Teodoro of principi Trivulzio.
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.