Moreruela Abbey is situated to the west of Granja de Moreruela, about 35 kilometres north of the town of Zamora close to the left bank of the Esla, a tributary of the Duero.
Before the time of the Cistercians, a monastery of the Benedictines already stood on the site, founded for them either by the Asturian King Alfonso III or by Saint Froilan, which under the patronage of Alfonso VII the Cistercians took over. The date of this takeover is often put at 1131/1133, which would make Moreruela the earliest Cistercian foundation in Spain. There is however an alternative theory which dates the establishment of the Cistercians here at 1143.
Moreruela was a daughter house of Clairvaux, and in its turn was the mother house of Nogales Abbey, also in Spain (1164), and Aguiar Abbey in Portugal (1165).
There are many remains of the abbey, although in ruins, particularly the Romanesque abbey church in the shape of a Latin cross 63 metres long, the construction of which was begun about 1170 and finished in the second quarter of the 13th century. The apse at the east end is completely preserved and has a vaulted ambulatory round a rectangular choir, with seven chapels as at Clairvaux. Also preserved are the walls of the 27 metres wide transept and of the northern aisle, and parts of the nave, once comprising three aisles and nine bays. Of the conventual buildings to the north of the church, the chapter house among others remains, although partly reconstructed.
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.