Oporów Castle is built of bricks in the Gothic architectural style in between 1434–1449 in the village of Oporów The castle was raised by the Deputy Chancellor of Poland (1429-1434), and highly regarded religious leader Władysław Oporowski.
The first wooden stronghold located in Oporów was recorded in the fourteenth century. The castle is said to have been raised by Mikołaj Oporowski and his son Władysław Oporowski, a highly regarded political and religious leader in the Kingdom of Poland, which in 1428 took on the estate as his own. Up until the eighteenth century the castle was owned by several families: House of Sołołobów, Korzeniowski, Pociejów and the House Oborski. The residence had only once ever been hit by any sort of devastation - in 1657 the castle's top levels caught fire - however, all of the castle was reconstructed. In 1930 the castle was transferred to the Society of the Credit of Land in Warsaw (Polish: Towarzystwo Kredytowe Ziemskie w Warszawie). After World War II the castle was nationalised and reconstructed. In 1949 the castle began housing a 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.