Eskelhem Church was preceded by a wooden church, of which nothing remains. Circa 1200 it was replaced by a stone church. The walls of the nave of the present church are all that remains of this edifice. The church was successively enlarged and rebuilt until it received its present form in the middle of the 14th century.
Internally, the church is decorated with different sets of frescos, dating from the end of the 13th century and the 15th, the latter by the Master of the Passion of Christ. Among the church furnishings, the baptismal font from the 12th century, probably made by Master Byzantios, and the triumphal cross, made around 1250 both deserve mention.
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.