Bydlin Castle was built in the 14th century and appears in documents after 1389. The builder of the castle was probably Niemierza of Strzała or his father Pełka. At the end of the 15th century the stronghold became the Brzezickis’ property, and then the Szczepanoskis’ and the Boners’. In the second half of the 16th century Jan Firlej transformed the castle into the Arian Protestant Church, and at the end of the 16th cent. his son, Mikołaj Firlej, converted it into the Catholic Church of the Holy Cross. The building was abandoned at the end of the 18th century due to escalating assaults of the brigands and since then it has been falling into ruin.
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.