Maribor castle, which boasts several constructional and style periods, was built by Emperor Friderik III between the years 1478 and 1483 for the purpose of fortifying the north eastern part of the town wall. The castle was in the course of time changed into a rich feudal residence.
The main room in the castle is the Festive Hall. The hall has rich interior furnishings with pictures of the artistic Quadri family and Laurenzo Laurigo. On the oval ceiling there is the picture of a battle between Christian and Turkish soldiers, which was painted by Johann Gebler from Graz in 1763.
The Baroque stairway was built between 1747 and 1759 and the Loretto chapel between 1665 and 1675.
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.