The original building of the current cathedral in Gibraltar was built during the Spanish period. Just after the reconquest of the city to the Moors, the main mosque was decreed to be stripped of its Islamic past and consecrated as the parish church. However, under the rule of the Catholic Monarchs, the old building was demolished and a new church was erected, in Gothic style. The cathedral's small courtyard is the remnant of the larger Moorish court of the mosque. The Catholic Monarchs' coat of arms was placed in the courtyard where it can still be seen today.
Due to the building being severely damaged during the 1779–1783 Great Siege, in 1790 the then Governor of Gibraltar Sir Robert Boyd offered to rebuild the cathedral. The reconstruction took place in 1810 and the opportunity was also taken to widen Main Street. The clock tower was added in 1820 and in 1931 restoration work was carried out on the cathedral and the current west façade erected to replace the poorer one built in 1810.
Until the 19th century, anyone who died in Gibraltar had the right to be buried under the cathedral floor. Bishops are buried in a crypt beneath the statue of Our Lady of Europe.
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.