Château de Quillan was first mentioned in 1125. There had been a fort built by Visigoths already in 781 AD. The castle was conquered by the Royal army of France in 1210 during the Albigensian Crusades. The castle got its current appearance in restorations of 1232 and 1341. Since then Quillan castle has been damaged in wars by Spanish Armies and Huguenots (1575).
Since the 18th century Château de Quillan was left to decay and dismantled. Today still the impressive ruins remain overlooking the village.
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.