Castle of Los Zúñiga was built in the 15th century by D. Pedro de Zuñiga. Its objective was to defend the passage of Barca del Río Piedras.
Its structure is rectangular in shape and consists of a wall circuit with seven square towers at the corners and on the front and side canvases. The most important towers are the bell tower and the homage tower. In addition to these towers, there was a second outer low wall, already disappeared.
In the 16th century the castle was refortified. Barbican was added, which was specially conditioned. It was an ideal refuge for citizens before the attacks of the Portuguese occurred in the 17th century and ended up consolidating the current town.
In the 18th century, it was planned to convert it into a barracks for the guard corps but discarded the project ended abandoned in 1812.
In 1815, the Duke of Béjar transferred the property to the Villa. In 1817, it was disarmed and adapted for cemeteries, dismantling the barbican and building barracks of vaults attached to the walls inside. He kept this use up to 1,872. Then it was destined to deposit coals and wood, after its desacralization.
In 1880 the file for the demolition is instructed, for its state of ruin, which is understood to threaten to collapse, and the corpses that are still preserved in the vaults, not those on the ground, are exhumed. As on other subsequent occasions, the demolition was not carried out due to the difficulties involved, acting simply to consolidate the most dangerous.
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.