St. James' Church is first mentioned in archival records dating to 1285, and was later rebuilt as a Gothic-style church. A Brick Gothic church, the building is comprised from granite blocks at its base, and sandstone quarry derived bricks higher up. St. Jacob's is a three-aisled hall church, with stain glass windows dating to the 14th and 15th century preserved in the church's ambulatory. The choir banks were installed in 1430. Also of interest in the church is the beautiful sandstone pulpit added in 1612.
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.