Saint Waltrude Collegiate Church dates back to 1450, and the origin of the famous chapter of noble canonesses that seated for centuries inside this church. The chapter played an important part in the local history, all of the Canonesse were familymembers of important noble houses. Antoine-Joseph Fetis, titular organist, taught his eldest son François-Joseph the first steps of the practice of organ music.
Inside the church important graves can be found amongst them Antoine de Carondelet and Alice of Namur.
The exterior of the church is a fine example of Brabant Gothic architecture, parts are built by Matheus de Layens. However in the 17th century the works stopped and the building was never completely finished. The interior contains important artworks, including sculptures by Jacques du Broeucq and paintings by Peter Paul Rubens, Floris de Vriendt, Theodoor van Thulden, Otto Venius and Michiel Coxie.
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.