The University of Oñati was founded in 1540. Until its closure in 1901, it was the only university in the Spanish Basque Country. Its building is now the home of the International Institute for the Sociology of Law.
Founded in 1540 by the Bishop of Avila, Rodrigo Mercardo de Zuazola under the authority of a bull of Pope Paul III, the University of the Holy Spirit was originally located in Hernani, but in 1548 moved to Oñati. The University specialised in theology, law, canon law, the arts and medicine and was strictly limited to Catholics until 1869, when it was opened to all. The institution closed in 1901. Since 1989, the building houses the International Institute for Sociology of Law (IISL).
In 1931 the building was declared a National Historic Monument. It is one of the most remarkable Renaissance buildings of the Basque Country, and was built in the Plateresque style. Construction of the building began in 1543 by the master stone mason Domingo de la Carrera and the sculptor Pierre Picart.
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.