San Donato dates from the 12th century and is in Romanesque style. It became a parish under archbishop Siro il Porcello, and was consecrated on May 1, 1189.
After the bombardment of 1684 it was restored several times, being again consecrated on December 4, 1892. Other restorations in 1946-1951 have kept its Romanesque appearance.
The interior contains a Madonna by the 14th-century painter Nicolò da Voltri; a St Joseph, by Domenico Piola; and a marble relief of the Baptism of Christ, started by Ignazio Peschiera and completed by his pupil Carlo Rubatto. There is also a tryptich (1515) by Joos van Cleve representing The Adoration of the Magi; the person who commissioned the work Stefano Raggi with Guardian Saint ; and a Mary Magdalen. This is topped by a Crucifixion scene with Mary and St John the Evangelist.
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.