The first evidence that exists of the original structure and seed of Basílica Menor de la Sacra Iglesia Parroquial de San Ildefonso dates back to 1248, when it was created as a chapel for serving the Cathedral. Two centuries later, in 1430, it became the scene of a famous miraculous event: the descent of the Virgin Mary to the city of Jaén. After this event, the building became a shrine dedicated to the Virgin of the Chapel and homage was paid to the image of her found inside it. In the sixteenth century, the Virgin of the Chapel was named patron saint of Jaén.
The church comprises three doorways: the oldest, in Gothic style, is at the back of the church. The side doorway, in Renaissance style, has a relief of San Idelfonso receiving the mass vestments from Mary. The last to be built was the main doorway, in Neoclassical style, which is crowned by an image of the Saint who the building is named after. The remains of the famous architect and stonemason, Andrés de Vandelvira, are buried here.
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.