Palazzo Montalto was built in 1397 for Maciotta Mergulese. In the 15th century, the Queen of Aragon gave the palace to Filippo Montalto. It was used as a temporary hospital during a cholera epidemic in 1837, and it was used by the Figlie della Carità in 1854.
The palace is built in Chiaramonte Gothic architecture. Its façade is characterized by a number of mullioned windows decorated with flower motifs. It also has a palline losanghe cornice, similar to the one found at Palazzo Falson in Mdina, Malta.
The portal is topped by an aedicula containing a marble slab with an inscription and the date of construction.
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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.