The church of Notre-Dame d’Alleaume was built on a site where the remains of the Gallo-Roman town of Alauna have been found. The edifice which was altered in the 13th, and 15th centuries (enlargements) and in the 18th century (re-working) retains some elements of the 12th century (porch in the south wall of the choir, door in the south wall of the nave). The lintel of a door in the south wing of the transept shows an older bas-relief (probably from the mid-11th century). It shows two saints under arches (Peter and John), a down bearing an olive branch and the mystic lamb, an image of Christ. It has not been possible to attribute this rather archaic work to any sculptor of the Romanesque period in the Cotentin region.
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.