San Salvatore is one of the largest castles in northern Italy. In 1245, the city of Treviso granted the hill of San Salvatore to the Collalto family. They built a castle on top of the hill between the late 13th and early 14th centuries. In 1312, when the castle was complete, Emperor Henry VII granted full jurisdiction of the area to the Collalto family. They planted vineyards in the fields around the castle.
The 16th to 18th centuries were a peaceful period in the area, and the castle was embellished by a number of artists. Its chapel was decorated with frescoes, and a palace called Palazzo Odoardo was also built within the castle.
Following the Battle of Caporetto in 1917, Susegana fell under Austro-German occupation. The castle was used by the occupation forces, and was later bombarded by Italian artillery, severely damaging the structure in the process. The castle was restored between 1943 and 1951.
The castle is now used as a venue for cultural events.
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.