The church in Burs derives its unusual shape from the fact that it was built in stages. The nave is the oldest part of the church, dating from the early 13th century. The large tower was built in the middle of the same century, while the un-proportionally large Gothic choir was built a century later, replacing an earlierRomanesque choir and apse.
Externally, the church is noteworthy not least for its choir portal. The doorway displays Gothic sculpturesdepicting a blessing Christ, apostles and saints, as well as a large frieze spanning the whole of the portal, depicting the Parable of the Ten Virgins. The choir, and hence the choir portal, was probably built by a stonemasons' workshop sometimes referred to as Master Egypticus. The same workshop probably made an unusual, very elaborate carved limestone bench inside the church, on which traces of original paint are still visible.
The interior is spacious and airy. Of furnishings, the altarpiece deserves special mention. It is an unusually accomplished work of art made in Lübeck or northern Germany during the first half of the 15th century. The church also has a triumphal cross from the 13th century, traces of medieval stained glasspaintings and several pieces if furnishings which are later, dating from the 18th century. The church was thoroughly renovated in 1960-1964.
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.