Laiuse Castle was the first castle in Estonia built to cope with firearms. The oldest part of the castle was probably built in the end of 14th century by the Livonian Order. It was first mentioned in 1406. In 1558 during the Livonian War the castle was conquered by Russian troops and badly damaged. Nonetheless the castle was later still in use both by Polish and Swedish rulers. During the Great Northern War, from 1700 to1701, after the Battle of Narva, the Swedish king Charles XII established his winter quarters here. For five months Laiuse was the administrative center of Swedish Empire.
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.