Located at the western end of the Monleón village, next to a steep area that dominates the confluence of the Carnicero stream with the Alagón river, Monleón Castle was raised in the 13th century as part of the defensive walls that surround the village.
Its groundplan is an irregular trapeze, with the keep in the middle. The north and east wall of the enclosure are built later than the others, to obtain a fortified perimeter that defended the tower from inside the village. The square keep is made up of large granite blocks reinforced with ashlar masonry at its corners. The top is fitted with 8 turrets. In medieval times the keep could be accessed on the second floorlevel by means of a removable stair or drawbridge. Its interior was fitted with five floors.
In 1477 the castle was besieged by the troops of King Fernando the Catholic. The reason for this was that its lord; a Salamancan knight, Don Bernardo Maldonado the Tyrant, had been manufacturing false currency amongst other crimes that caused great damage to the surrounding territories.
References: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.