The upper castle of Arnad is mentioned first time in a papal letter in 1207, but there is no information about its origins or first owners. It was probably built by Saverio di Arnad in the late 12th or early 13th century.
The next owners, Vallaise family, lived in the castle throughout the 14th century. Due to the inadequacy of the structure and the lost military function, the castle was abandoned in the 15th century.
Today the castle lies in ruins.
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.