Encinas Castle is dated back to the 14th century. The castle consists of a small and square enclosure, with two square towers in two of its corners. One of these served as the keep. In the other two corners the crenelated walls are raised to the same height as the two towers thus giving the false impression that the castle had four towers. There is a small stone ditch at the feet of the walls, which is provided with a low defensive wall.
In the 1950's the ruined castle was acquired by the Ministry of Agriculture. They restored it and turned it into a cereal silo. During these restorations however they blinded original windows and totally destroyed its medieval interior.
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.