The Hilleshög Church is a mostly Romanesque edifice, built in granite and brick, with some parts from the 17th and 18th centuries and later additions. It was probably built in the late 1100s and the sacristy and the porch were added in the 15th century.
Many of the paintings in the interior, dating back to the end of 13th century and they early 15th century, were painted over in the 18th century but were restored in the 1920s and in 2002, together with some of the furniture.
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.