The fishing village of Garrucha suffered at the hands of Berber pirates until the year 1766 when barracks were built at Escobetas, a provisional military building. In 1769, the castle was completed at a cost of 181,000 reais. The fort was designed by the architect Francisco Ruiz Garrido. After its construction, Garrucha began to grow.
It is of masonry construction in three section. The central portion is rectangular with rounded short sides. Attached to the right lateral side, there is a truncated pyramid shape with sloping walls. In its upper part, a parapet is pierced with loopholes. The main body is attached to the left side, of lower height, without openings. It is accessed by an external staircase and one tranche that attaches to the right side.
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.