The construction of Sofia Albertina Church began in 1754 by the design of Carl Hårleman and it was inaugurated in 1788. It is named after the sister of Gustav III of Sweden. Sofia Albertina replaced the medieval church from the 1400s. The church has unusual design, because it has two towers but it's not a cathedral of bishop's seat.
The font dates from the 12th century. It was a used as a fountain in local family's garden until they noticed its value. Chandeliers were moved from the old church and they date from the 1600s.
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.