Montemolín was inhabited long before our era and received the influence of Lusitanians, Beturians, Celts and the Turduli. During the Arab domination, it was also an important enclave strategically located on the border between Andalusia and Extremadura, with a powerful fortress for defense.
Although there is no record of the beginning of the fortress's construction, it may have been erected around the 12th century. The earliest known information about the fortress dates back to the year 1246 when the castle was reconquered and handed over to the Military Order of Santiago.
The walls of the fortified enclosure cover a significant length, surrounding the hill's summit that dominates the town and offers a clear view over long distances. These walls are made of rammed earth with attached prismatic towers that punctuate the perimeter. The shape is similar to a rectangle about 130 meters long and 50 meters wide, adapted to the natural defensive terrain. The foundations are sometimes made of masonry. In the southeastern flank, the remains of a barbican to protect the main gate are preserved, along with two attached towers, which were typical features of Arab fortresses. The entrance arch, made of brick and over three meters thick, is framed between two octagonal towers, projecting outward and chamfered or octagonal in profile, following a design tradition borrowed from Roman and Byzantine constructions. From the main enclosure, only remnants of seven solid corner towers remain, two of which are covered, and the other five are freestanding. There are two major towers: the Miramontes Tower and the Homage Tower.
During the possession of the castle by the Order of Santiago, very few maintenance and restoration works were carried out.
The Clementinum is a historic complex of buildings in Prague. Until recently the complex hosted the National, University and Technical libraries, the City Library also being located nearby on Mariánské Náměstí. The Technical library and the Municipal library have moved to the Prague National Technical Library at Technická 6 since 2009. It is currently in use as the National Library of the Czech Republic.
Its history dates from the existence of a chapel dedicated to Saint Clement in the 11th century. A Dominican monastery was founded in the medieval period, which was transformed in 1556 to a Jesuit college. In 1622 the Jesuits transferred the library of Charles University to the Klementinum, and the college was merged with the University in 1654. The Jesuits remained until 1773, when the Klementinum was established as an observatory, library, and university by the Empress Maria Theresa of Austria.