Peniscola Castle is situated on a crag overlooking the Mediterranean Sea. Arab writer Al-Idrisi described Baniskula in the 11th century AD, and briefly described a Moorish castle overlooking the sea. There are no detailed descriptions until the 13th century, when James I of Aragon briefly summarised the Muslim defences. The castle was transferred to James's control in 1229.
The current form of the castle is essentially that developed by the Knights Templar, who planned to develop a kingdom centered on Peniscola. James II of Aragon gave the castle to the Templars in 1294. The Templars began work that year, demolished the Muslim fortifications, and completely rebuilt the castle; the work was completed in 1307. In common with other Templar fortifications, the castle was laid out around an inner ward and possessed a chapel. Architectural features included barrel vaulting and round arches. The basic Templar core of the castle remains intact; some changes were made by Antipope Benedict XIII in order to modify it for use as a papal residence in the early 15th century. The castle defences and the associated town fortifications were significantly upgraded from the early 16th century onward, in line with advances in military technology. The castle was massively redeveloped by military engineer Giovanni Battista Antonelli in the 16th century.
The castle was involved in various military conflicts of the Kingdom of Aragon, and later in the War of the Spanish Succession in the early 18th century, the Peninsula War and civil conflicts in the early 19th century, each of which impacted upon the state of the castle defences in some form. The castle garrison was finally disbanded in 1890.
The castle where Benedict lived from 1417 until his death in 1423 was restored, improved and new walls were added in 1960 when Anthony Mann's film El Cid was partially filmed there. The town and castle of Peníscola played the role of Valencia. The castle is now a popular tourist attraction and the beaches and surrounding area are a popular family holiday resort.
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.