St. George's Church site in Sélestat was first mentioned in records from the eighth century and was originally a baptismal chapel in the imperial palace built by Charlemagne, which the emperor is believed to have visited at Christmas in the year 775. The church stands on the remains of a large rotunda. Most of the Gothic basilica was built by Sélestat traders, a few metres from the Romanesque church of the priory of Sainte-Foy, the earlier church of the town, and its construction may be held to mark the growing wealth and independence of the merchant classes. Building of the new church started around 1220 and continued without interruption until the early fifteenth century. The side aisles were built during the first year, and the nave itself was raised in 1235.
The west end was constructed in the early 14th century. Similarly, the west tower, topped with an octagon with pinnacles, is dated to the 14th century, although the work was interrupted during this century. The construction of three large choir spans began at the end of the 14th century.
The construction of the tower continued during the 15th century and a rood screen was built in 1489 and 1490 by Conrad Sifer, but was destroyed during the French Revolution.
A door on the north wall of the transept was formed in the fifteenth century. A relief carved on the reverse is the veil of Saint Veronica, showing nails and the Holy Face. This relief could also be the work of Conrad Sifer. A staircase mounting the height of the nave bears the date 1615, the name of 'Stéphane Exstel' and a stonecutter's mark. Many other stonecutters' marks are also found throughout the building.
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.