Hochburg castle was founded probably by Dietrich von Hachberg in the 11th century - although the first written mention dates from 1127. Between 1553-1577 the fortifications were completely remodeled and seven bastions were added in the early 1600s. Hochburg was however destroyed by catholic forces in the Thirty Years' War in 1634-1636. The reconstruction and modernization took place in 1660-1678, but it was again destroyed by German volunteers in 1681 to prevent an attack by French forces. The final destruction occured in 1688 by troops of Louis XIV.
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.