The Monastery of Fitero is a Cistercian monastery located at Fitero, on the banks of the Alhama river.
It was founded, on a different site, in 1141 as part of the Cistercian expansion into Spain from the center at Escaladieu Abbey, and moved to Fitero in 1152. Durand was its first abbot, followed by St. Raymond of Fitero, who later founded the Order of Calatrava.
The floor plan of the church is similar to that in the monasteries of Clairvaux and Pontigny, a Latin cross plan with three naves, the ambulatory sanctuary with five side chapels.
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.