The Convento de las Dueñas is a Dominican convent located in the city of Salamanca. The convent was founded in 1419 by Juana Rodriguez Maldonado in her own palace. The church and the cloister were built around 1533.
The convent preserve same of the original mudejar gates of the palace. One of them leads to the cloister. The capitals of the uppeer story are among the more prominent examples of the Plateresque.
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.