The Rożnów Castle is a complex of defensive objects, consisting of a medieval “upper castle” and Renaissance fortifications (“lower castle”). Its history dates back to the 13th century, when the Gryfita family built here a watchtower. The castle itself was probably built in 1350–1370 by Piotr Rozen. It is in the shape of a rectangle, 44 meters by 20 meters. In 1426, the castle was purchased by one of the most famous Polish knights, Zawisza Czarny, and after his death, it remained in the hands of Zawisza’s sons. In the late 15th century, Rożnów belonged to the Wydźga family, and later, to the Tarnowski family.
In the first half of the 16th century, during the Polish Golden Age, Hetman Jan Tarnowski began the construction of a fortress at Rożnów. It was planned to become one of the strongest and most modern fortresses in the Polish-Lithuanian Commonwealth, guarding southern border of the nation against the Ottoman Empire, which, after the Battle of Mohacs emerged as the dominant state in Southeastern Europe. Tarnowski’s death in 1561 put an end to these plans, and the construction was never completed.
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.