The oldest parts of Vansö Church were built in the end of 12th century. It was enlarged to east in the 14th century and again around 1450. The tower cap was demolished in 1765 and rebuilt 1901-1902.
The interior consists of a medieval altarpiece (1400s), crucifix (1270-1300), font (c. 1300) and two reliquaries (1400s). Vaults were decorated with murals in the 1460s.
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.