The oldest part of the presently visible church at När is the tower, erected at the middle of the 13th century. Originally, it was designed to be able to function as a defensive tower, with arrowslits still visible on the first floor. The present nave and choir of the church were added to the tower around the year 1300. Of an earlier, Romanesque church on the same site no traces remain today.
Externally, the church has two portals decorated with stone sculptures on the southern façade. Internally, the nave is divided in two by two central columns. Among the furnishings, the Romanesquebaptismal font is the oldest. It was made by the sculptor known as Hegvald and its sculptured reliefs display religious motifs. The church also has a late medieval triumphal cross. Other furnishings are mostly from the 17th and early 18th centuries. In one of the lychgates leading to the church, a decorated tombstone from 1322 is displayed.
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.