The village Rappin was first mentioned in 1305 and the construction of the brick church started around 1300. Subsequently, the rib-vaulted nave was added, as were a vestibule and sacristy. The wooden bell tower was created only in 1635. A limestone font, the oldest piece in the church, dates back to the second half of the 13th century, and is decorated with motifs of round arches and faces. Escutcheons and memorial slabs from the 18th century bear witness to the many aristocratic families of the knights' estates in the area.
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.