Rochlitz Castle lies in the west of the town of Rochlitz. It was built on the site of an imperial castle, erected in the second half of the 10th century, which fell into the possession of the Wettin margraves in 1143. Its appearance, which includes several Romanesque wings, is considerably influenced by its remodelling into a margravial schloss in the fourth quarter of the 14th century. Further conversions and additions followed at the end of the 15th and in the 16th centuries, when the castle became a secondary residenz, dower house and hunting lodge for the Wettin family. The castle or palace was the residence for members of the Saxon princely house eight times. From the 18th century the castle served as an administrative centre (justice department and district court); in 1852 it became a gaol, which necessitated considerable alteration. The museum founded in 1892 was gradually expanded and, today, takes up almost the entire castle.
The palace lies southwest of the historic town centre of Rochlitz on a spur of the Rochlitzer Berg that descends gradually towards the east-northeast and is flanked by the Zwickau Mulde to the southeast and the Hellerbach stream to the northwest. The hill spur is divided into the Nosswitz castle hill in the west, which at 200 m above sea level is noticeably higher and covers an area of about 300 metres by 60 metres, and the Rochlitz castle hill with the palace complex (about 90 × 30–40 m), separated by a late medieval neck ditch. The main palace is further separated by ditches from the western lower bailey (the so-called Unterschloss) and the eastern lower bailey (Vorburg) with St. Peter's Church and a total length of about 220 × 40 m.
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.