Arévalo castle was built in the 14th century and reformed during the 15th and 16th centuries. It has a pentagonal ground plan and a large Tower of Homage. Inside there is a Cereal Museum.
King Pedro I, the Cruel, locked his wife Blanca de Borbón in the castle. Juan II and Enrique IV possessed it, the latter handed it to don Álvaro de Zúñiga; between 1476 and 1480, Zúñiga and the Catholic Monarchs negotiated a compesation for Arévalo and, in the ends, the village was taken over by the Crown. Subsequently it became a state prison.
References:I am also an Arevalo and I am trying to find how my family made it to Texas
I am an Arevalo and I am extremely proud of the
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.