Korsholm Castle was a medieval castle in Vaasa. It was probably built in the 1370s and the oldest record dates back to 1384 (the testament of Bo Jonsson Grip, where the castle was called as Krytzeborg). The castle was originally built to a small island and it was surrounded by a moat and two walls. The castle itself was probably built of wood.
In the Middle Ages Korsholm was a property of several nobles. The most famous of them was Sten Sture the Older. In 1748 the new governor house was built to the site and all medieval structures were demolished. The next house was built in 1851 but it was destroyed by the great fire of Vaasa in 1852. Today a low mound is all that remains of the castle. There is also a monument dedicated to the castle.
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.