The Knights from the Order of Santiago built the Hornos Castle between the late 13th century and early 14th century. They built iton top of an old Arab defensive structure in a strategic location, on one of the roads between the mountain chains of Cazorla and Segura.
Hornos Castle is made up of a defensive site with an outdoor enclosure in the shape of a trapezoid. We can find a large keep, a well right in the parade ground and remains of three turrets.
The keep is 9 metres tall and it has a square base. It was built using masonry with rounded corners, and this feature makes it less vulnerable to the effects of weapons.
The enclosure was also built in masonry. The Almohads builtthree slim towers with small bases,the towers are reinforced with a lining of masonry. Inside the enclosure we find a well of Arab origin.
These days in the Castle we find the Cosmolarium, an astronomical centre and planetarium where films are shown.
The Muslims founded Hornos fortress in the 9th century, and many of its remains such as the well in the parade ground and the three towers date from the Almohad period.
Don Pedro Pérez Pelayo Correa, grand master of the Order of Santiago, conquered Hornos in 1239. Thus, the town was attached to the Encomienda de Segura de la Sierra (a vast territory that belonged to the Order of Santiago).
During the 15th century, the towns of Hornos and Segura de la Sierra played adecisiverole in the political ambitions of the Manrique family who confrontedKing John II and King Henry IV.
Hornos remained part of the territory ruled by the Order of Santiago during the Modern Era, although between 1507 and 1748 the town belonged to the Kingdom of Murcia.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.