The Monastery of San Salvador or San Benito de Lérez was founded in the 10th century by Benedictine monks. The present church is Neo-Classical with an 18th-century Baroque façade, where the image of St. Benedict can be seen in a niche. Adjoining the southern wall, one wing of the 16th-century cloister is still standing. Some of the blocks in this wall show tomb engravings and Roman inscriptions, dating from the original construction.
The most interesting aspect of the interior is the Chapel of San Benito, built in the year 1700, and where we can see a beautiful image of the Saviour. It is a custom to pass below the Saint´s altar on one´s knees.
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.