The church of Exmorra is a small one-aisled church from the 13th century. In ca. 1300 the nave was lengthened and a tower was added. Of this tower, which collapsed in 1836, only the lower part remains. That same year the wooden tower and the western facade were built. Until the church was restored in 1963-1966 it was covered with a thick coat of plaster, underneath which many traces of its original Romanesque condition had been preserved. The big windows in the nave were replaced by smaller ones on the north side. On this side the wall has a peculiar curve. In the south wall thelarger windows, which are probably from the 19th century, remained.
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.