In 748 Mondsee Abbey was founded by Odilo, Duke of Bavaria. The abbey tradition was that the first monks came from Monte Cassino in Italy. In 788, after the fall of Duke Tassilo III, Mondsee became an Imperial abbey and over the centuries acquired extensive property. Around 800 the Codex Millenarius, an illustrated Latin book of the Gospels was written at the abbey. In 831 King Louis the Pious gave the monastery to Regensburg Cathedral.
It was not until 1142 that it regained its independence, under Abbot Conrad II, otherwise Blessed Conrad of Mondsee. Conrad, formerly a monk of Siegburg Abbey, had been abbot of Mondsee since 1127, and was extremely successful in defending and regaining the rights and possessions of the monastery, to the extent that in 1145 he was murdered by a group of nobles at Oberwang nearby. He was venerated as a martyr and declared Blessed.
Conrad was succeeded as abbot by Blessed Walter of Mondsee (died 17 May 1158), long remembered as a model by the community for his exemplary striving after virtue. He was buried in St. Peter's chapel in the abbey church.
In 1506 possession of the Mondseeland passed from Bavaria to Austria. In 1514 Abbot Wolfgang Haberl established the abbey grammar school. After a period of decline during the Reformation and the consequent disturbances, the abbey entered a new period of prosperity. Under Abbot Bernhard Lidl (1727-73) and especially in connection with the celebration of the thousandth anniversary of the foundation, there was extensive re-building of the church and the monastic premises. From 1773 the abbot was Opportunus II Dunkl, who was the last abbot of Mondsee: in 1791 the abbey was dissolved by Emperor Leopold II.
During the Napoleonic period the Mondseeland reverted to Bavaria for a few years. During that time, in 1810, the Bavarian Field Marshal Prince Karl Philipp von Wrede acquired the abandoned monastery (along with the nearby abbeys of Suben and Gleink), and used it as a castle. Wrede remained the owner even after the return of the territory to Austria and significantly developed the locality, for example by the construction of roads and the establishment of local cheese production. In 1905, on the death of Princess Ignazia von Wrede, Mondsee passed to the Counts Almeida, whose descendants sold it in 1985.
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.