Camaldolese monastery was built in 1747-1781 (consecrated in 1791). The monastery has an old Baroque style architecture, its interiors remain somewhat raw. Most of original equipment was damaged. The main altar is quite unique - in Rococo style. Frescos which come from the time of the monastery’s construction are very precious. There are relics of Five Martyr Brothers in the Church.
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.