La Lucerne Abbey (Abbaye Sainte-Trinité de La Lucerne) was founded in 1143 by Hasculf de Subligny, son of Othoerne, the tutor of William Adelin, both of whom perished in the White Ship disaster of 1120, and later had the support of the English crown. The new monastery was settled from Dommartin Abbey near Hesdin. The foundation stone of the permanent buildings was laid in 1164 by Achard of St. Victor, who was later buried here. Construction lasted from 1164 to 1178 and was in the Romanesque style, in the restrained and sober manner of Cistercian architecture, except that the complex was dominated by an Anglo-Norman Gothic tower. Major structural renovations were carried out in the 15th and 17th centuries.
La Lucerne was the mother-house of four other Premonstratensian monasteries: Ardenne Abbey, Mondaye Abbey and Belle-Étoile Abbey (at Cerisy-Belle-Étoile) in Normandy, and Beauport Abbey in Brittany.
During the French Revolution, in 1792, the abbey was suppressed. Its buildings were at first turned into a cotton mill and then used as a source of stone.
In 1959, under the aegis of Abbé Marcel Lelégard (1925-94), the enormous task was begun, which still continues under the 'Fondation Abbaye de La Lucerne d'Outremer', of the restoration of the abbey. The first phase of the work was the reconstruction of the abbey church, particularly the ogival crossing vaults and the west front with its Romanesque portal, continuing to the refectory and cellars.
Work has continued since then and the tithe barn, the Romanesque lavatorium (the only one in Normandy), the medieval gatehouse (with its bakery and courtrooms), the dovecote, the park, the 18th century abbot's lodgings and the ponds are all now restored . The chapel of Blessed Achard is in the process of restoration.
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.