Cismar Abbey was a Benedictine monastery founded in 1238 by Count Adolf IV of Holstein as alternative accommodation for Benedictine monks from Lübeck. In the mid-15th century it was one of the six original members of the influential Bursfelde Congregation, a Benedictine reform movement. After three prosperous centuries, based largely on its possession of a relic of the blood of Christ and a healing spring dedicated to John the Baptist, which made it a centre of pilgrimage, it was dissolved in 1561 during the secularisation brought about by the Reformation. The monastic library is preserved in the Danish Royal Library in Copenhagen.
The abbey is famous for its carved altar, dating from early in the 14th century, still in place in the church. The other surviving buildings, after a wide variety of secular uses, now serve as a museum.
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.