St. Jadwiga's Church in Brzeg is a Gothic castle church. The Gothic brick-built chapel, adjoined to the south-western portion of Brzeg Castle was built in the former location of a collegiate church built between 1368 and 1369. In 1741, the chapel was destroyed due to Prussian bombardment, with only the presbytery having had survived. After its reconstruction in 1783-1784, the chapel served as the mausoleum for the Silesian Piasts (after 1945, 22 sarcophagi were found in the crypt). The chapel suffered damage during World War II, and was reconsecrated as a church in 1989.
Presently, the sarcophagi are located in the adjoined Silesian Piasts Brzeg Castle Museum.
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.