Dieleghem Abbey was founded in 1095 by the Bishop of Cambrai and administered by Augustinian canons. In 1140, the abbey’s monks switched to the rules of the Premonstratensian order. In the 13th century, the abbey now called Dieleghem possessed half of the commune’s territory and played an important social and economic role until the French Revolution. In November 1796, the Canons Regular were evicted and deported to an island off the shores of Brittany.
The abbey was looted and subsequently destroyed, sparing only the abbot's residence. The former residence of the abbot now houses the collections of the museum of the County of Jette.
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.