Antvorskov was the principal Scandinavian monastery of the Roman Catholic Order of Saint John of Jerusalem. In 1165, Valdemar the Great, who was himself an honorary Knight of St John, gave the Order land at Antvorskov. The monastery was constructed soon thereafter, during the time of Archbishop Eskil. The mother monastery, on Rhodes, and a monastery on Cyprus were built to house pilgrims to the Holy Land. Daughter houses such as Antvorskov were to forward any profits from properties to the monastery on Rhodes. Over time, however, especially after the collapse of Crusader kingdoms in Palestine, the Order focused more on helping local people, especially those suffering from leprosy, which was not uncommon in mediaeval Europe.
In the 13th and 14th centuries, the monastery became one of Denmark's major landowners. Many persons nearing death and seeking to withdraw from the world into a quasi-religious life donated some or all of their goods to the monastery. Many families seeking heavenly rest for their kinsmen donated property to buy prayers in perpetuity for those deceased relatives, or to buy burial places inside the abbey church.
Despite the vast landholdings attached to the monastery, the central government of the Order on Rhodes (and, later, on Malta) often scolded Antvorskov for failing to send the required excess to the mother house. In time, Antvorskov came to own farms and land all over Denmark and as far south as Rűgen, where a daughter abbey at Maschenholt was established in 1435.
After the Reformation, the monastery complex became a royal residence. Frederik II died at Antvorskov in 1588. Frederik IV's wife was created Countess of Antvorskov, but upon her death the properties reverted to the crown. In 1717, the abbey became for a while a staging location for the Danish army, housing troops.
The abbey church was reopened for services in 1722, but the new owner, Finance Minister Koes, ordered the church to be pulled down and the materials used to rebuild his manor at Falkenstein. In 1774, lands at Anvorskov were broken into nine large estates, which passed into the hands of local noble families. In 1799, State Minister Bruun bought the remaining estate, divided it into four parcels, and sold them off.
The remnants of the monastic complex crumbled, visited by Danes and others as a picturesque reminder of the distant past; in his autobiography, Hans Christian Andersen, for example, mentions excursions to the ruins of the monastery. But by 1816, the last of the ancient buildings stood in hopeless disrepair and were torn down.
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.