Saint Peter of Nora (Iglesia de San Pedro de Nora) is recorded for the first time in a donation document of Alfonso III of Asturias in 905.
Given its similarities with the church of San Julián de los Prados and the church of Santa María de Bendones, it was probably built in the times of Alfonso II of Asturias. Declared National Monument in 1931, the church burnt in 1936 during the Spanish Civil War losing the roof. It was restored by Luis Menéndez Pidal y Alvarez.
This church has the construction style established in church of San Julián de los Prados: facing eastwards, vestibule separate from the main structure, basilica-type ground plan, central nave higher than the side aisles, with intersecting wooden roof and lit by Windows with stone lattice. The straight sanctuary is divided into three apses with barrel vaults. As a differentiating element, the apses were joined to each other through the dividing walls by semicircular-arched doors. Like all the churches from this period, there was a room over the apse, only accessible from outside through a trefoil window. The bell tower, separate from the church like in Santa María de Bendones, does not belong to the original construction, and stems from an initiative in the seventies by the architect and great restorer of Asturian Pre-Romanesque, Luis Menéndez Pidal y Alvarez.
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.