St. Mary's Cathedral stands in Danziger Straße and was built between 1890 and 1893 to the designs of Arnold Güldenpfennig. The church was erected in Romanesque revival style at the instigation of Bishop Bernhard Höting of Osnabrück, then simultaneously officiating as Vicar Apostolic of the Vicariate Apostolic of the Nordic Missions of Germany, then competent for Hamburg's Catholics. It was the first new Roman Catholic church built in Hamburg since the Reformation.
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.