The history of Trigueros Castle isn't very well known. It is not built on a strategic position because, although located on a small hill in the village, it is dominated by other higher hills. So, the castle was probably more a fortified residence than a military strength. Also the name of the village church, an older building on a higher hill; Santa Maria del Castillo, seems to indicate that the most suitable place of a preceding strength already had been taken.
By its groundplan and disposition it seems to have been build in the 14th century. And reformed and completed in the 1453 as indicated by the coat of arms of Gutierre de Robres (or Robles) and his wife Maria de Guevara, placed above the entrance gate.
Visitors can admire the stables, as well as several blocks that once formed part of the Keep and gateway walls. The main entrance to the castle boasts the coats of arms of Gutierre de Robles and his wife María de Guevara, the lord and lady of the castle who carried out a considerable amount of work on the castle, as well as an inscription featuring the year 1453.
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.