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.
Prunn Castle is perched on an almost vertical Jurassic outcrop high above the Altmühl river valley south-west of Regensburg. Its impressive appearance from a distance is matched by the views from the castle of the surrounding Altmühltal countryside.
Lords of Prunn were first mentioned in 1037, and they will have certainly chosen the site because of its favourable position on several transportation routes. The castle itself dates from around 1200, a time when many castles were being built. The Danube region centring around Kelheim became very important in this period under the Bavarian duke Ludwig I. One of the oldest parts of the castle is the 31-metre keep.
In 1288, Duke Ludwig of Bavaria acquired the castle from the lords of Prunn-Laaber. In the first half of the 14th century the duke then invested the Fraunberg vom Haag family with the castle.