The hill where the Jumilla castle is built was inhabited by people from the Bronze Age. In a later era, this was occupied by people when Iberian civilizations were present in large part of Iberian Peninsula, and specifically in the current municipality. In Roman Iberian Peninsula period, people also leveraged this hill. The last era in regards to this hill before the construction of the current castle is the one when large part of Iberian Peninsula was under Muslim peoples rule. They built a fortress in the 8th century, but they used unstable materials.
In 1241 Jumilla Castle was conquered by troops of Ferdinand III of Castile. Around 1290 the area passed to the Kingdom of Aragon. In 1357 the castle was taken by Ferdinand of Aragon, who had sided with Peter of Castile. Shortly after, Ferdinand again pledged his obedience to his brother, Peter IV of Aragon. Thus the castle returned to the Aragonese crown. In 1358 the castle was again taken for the Castilian crown by Fadrique Alonso, Lord of Haro and Master of the Order of Santiago.
The current castle was built in the year 1461 and its architectural style is gothic.
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.