The exact construction period of Rõngu vassal fortress is not known, but it was probably completed around 1340. The Holy Cross Chapel, located here, was mentioned in the year 1413. During the Middle Ages, the stronghold belonged to the Tödwen family. The fortress was destroyed by the troops of the Order in 1558 and burnt by Jesuits in 1625.
The majority of the castle's layout is not visible over the ground surface. An approximately 25-metre-long section from the outer wall of the eastern side has been preserved, there is also the opening of the main gate. The ruins have not been conserved and fall down gradually. The castle hill is surrounded by a 12-hectare park, which has beautiful majestic oaks, larches and other ancient trees.
Reference: Võrtsjärv Travel Guide
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.