The Castle in Siewierz was built in the first half of the 13th century on a man-made hilltop, where formerly stood a wooden fortress. The oldest of the stronghold"s fortifications come from the 15th century. In 1443 Duke Wac³aw I of Cieszyn sold the town and the castle to Kraków"s bishop Zbigniew Ole¶nicki. The Bishops of Kraków expanded the castle and its fortification walls. The castle began to crumble in the seventeenth century, and Swedish raids quickened its deteriorating. After The Deluge the castle was rebuilt by that didn"t stop it from deteriorating and turn into a ruin. The last resident of the castle, Feliks Pawe³ Turski, left the residence in 1800. The only reason the building did not diminish is due to extensive reconstruction and renovation works in the 1950s, 1970s, and 1990s.
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.