The Noor mansion or castle (Noors slott) is mentioned in manuscripts for the first time in 1311. In the 16th century, the crown owned the estate and then, until the 1680s, ownership was held by the Tott, Stöör and Månesköld families. The mansion was confiscated as part of the reduction by King Charles XI in 1686, whereafter it was used as a royal hunting lodge. In 1689 King Charles XI sold the mansion to his adviser Count Nils Gyldenstolpe. He rebuilt the mansion in Swedish Carolean Style, the style of fashion in Sweden during the period of the two Carolean kings, based of drawings by Jean de la Vallée. Between 1761 and 1918 Noor mansion was owned by members of the noble Hermelin family.
Nobel laureate Verner von Heidenstam wrote his historical novel The Caroleans (Karolinerna) at Noor mansion in 1897, during a spell of one year at the mansion to benefit from its late 17th Century atmosphere.
Noor mansion was renovated 1996-97 and is now a privately owned Conference Centre.
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.