History of the Cheb Castle began in early 12th century, when in the place of the former Slavonic settlement the second oldest castle in our territory was built. Its following destiny is narrowly connected with the mighty imperial dynasty of the Hohenstaufs. The famous Fredrik I Barbarossa later majestically extended the castle and changed it into a sumptuous pfalz (palatinate). The torso of once majestic palace, the massive defensive Black Tower and above all the unique Romanesque Gothic St. Martin, Erhard and Ursula Chapel have preserved till these days.
The castle experienced hard and unstable times, many wars and conquests, too. The castle went through its last development stage at the turn of the 17th and 18th centuries when it was partially reconstructed into a Baroque citadel.
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.