Schwerin Cathedral was formerly a Roman Catholic cathedral, dedicated to the Virgin Mary and Saint John. It was built in Schwerin following the move here of the seat of the Bishopric of the Abodrites, established by Henry the Lion, from the old city of Mecklenburg in the late 12th century. The first cathedral was built of timber. The foundation stone of the stone cathedral of the Prince-Bishopric of Schwerin was laid in 1172. After a construction period of 76 years, it was consecrated in 1248. The proto-cathedral is now the church of the Bishop of the Evangelical Lutheran State Church of Mecklenburg.
In 1222 Count Henry of Schwerin returned from a crusade with a reliquary of the Holy Blood, an alleged drop of Christ's blood contained in a jewel. This was placed in the cathedral, and caused it to become a place of pilgrimage. During the 14th century the nave and transept were completed, as well as the chapter buildings. At the end of the 15th century the cloister on the north side was finished.
The tower, 117.5 metres high, was constructed between 1889 and 1893.
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.