King Alfonso II founded the Monastery of San Paio de Antealtares in the year 830. It fell into decay at the end of the 13th century, and in ruins, the Catholic Monarchs eliminated it and included it into S. Martín Pinario. In 1495, Gómez de Marzoa´s efforts to set up a college for poor students led to the monastery becoming Compostela´s first school and the origin of Galicia´s Renaissance University. The Order of benedictine nuns occupied it as of 1499.
The present-day building, in baroque style, appeared between 1599 and 1744. Fernández Lechuga the closing wall of La Quintana as a large, undecorated canavas, gicving the sensation of perfection and grandeur; Velasco Agüero built the other walls of the cloister and doorway facade, with a monumental doorwayframed by four giant order Doric columns; Fernando de Casas y Novoa extended the building to the Carros Gateway, finished by Lucas Ferro Caaveiro and known as 'Puerta de la Borriquita' (the Donkey Gateway), thanks to the relief image of the Flight to Egypt (Francisco de Lens, circa. 1750). Church (Friar Gabriel de las Casas, 1703-07) in cut-stone granite and tiled, two-sided roof. Greek cross ground plan extended at the western end to accommodate the choir. Simple, monumental facade with the figure of St. Pelayo Martyr. Interior covered with a dome over pendentives. Main retable by Castro Canseco.
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.