The Castle of Châteauneuf-du-Pape was probably originally a Roman castrum destroyed during the great invasions. A 913 charter referred to the castellum de Leri. The first mention of a Castro Novo (new fortified village), which led to the name Châteauneuf, did not appear until 1048. In 1077 the keep was built there. Throughout the Middle Ages, the old château was a watchtower and a toll gate on the Rhône that passed to various families allied to the house of Albaron. Only a tower remained in 1146, and by 1283 it was already being referred to as 'the old tower'.
Jacques d'Euze, previously the bishop of Avignon, was elected pope in 1316 and took the name John XXII. Châteauneuf fell directly under his authority. Then in 1317 he decided to build a new château above the village. It was finished in 1333. Due to its size and location its function was essentially defensive At the same time, in 1318, he circled it with ramparts.
After the Popes returned to Rome in the early 15th century, the castle was abandoned, for the bishops did not have the means to maintain the castle. During the years which followed, the castle underwent the vicissitudes of time, including times of strife such as the Wars of Religion in the 16th century. In 1892 it was ranked as a historical monument, and was again damaged during the World War II.
Today, all that remains is a sungeon, the southern wall, and the lower pontifical cellar. The castle is the emblem of the town of Châteauneuf-du-Pape and is often used for local receptions and wine events, such as the Councils of the Echansonnerie des Papes, the Bacchic Brotherhood of Châteauneuf-du-Pape Wines.
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.