The castle of Brina is located on the left slope of a hill in the lower Val di Magra, along the ridge between Falcinello and Ponzano Superiore, within the district of Sarzana and on the border with Santo Stefano di Magra. The original part of the castle could date back to the 11th century. It was first mentioned in a sales contract on May 25, 1055. The houses, the lands and the castle’s walls were mentioned in a sales document on June 14, 1078, in which Pellegrino de Bruciore sold all his belongings and the lands outside the walls of the defensive fortification of Brina to the bishop of Luni.
During the 14th century, the castle was torn down, not by war, but as a result of a systematic destruction. This is confirmed by the ruins of the buildings, which show signs of having been destroyed using picks. The tower was torn down through the mining technique, that is to say by substituting a line of rocks at the base of the building with wood and setting it on fire.
The castle is in ruins but it has been made safe and strengthened after a recent restoration.
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.