The Maltese Church is a Roman Catholic Gothic church of the Knights Hospitaller in Vienna. The first church on this site is mentioned in 1217, as a commandry to care and support crusaders. The current building was built in the mid-15th century. In the 17th century it was a favoured preaching location for Abraham a Sancta Clara.
This building was rebuilt to fit contemporary taste in the Baroque era and in 1806, and the Kommendenhaus (1839) and parts of the church (1857) had stained glass added during the 19th century. The Order ran into financial trouble after the First World War and in 1933 had to sell the church and the Johanneshof, and the church was given over to other uses within a historical preservation order. It was bought back in 1960 and restored in stages in 1968, 1972 and 1983-84, finishing with a general restoration in 1998.
The church's high altarpiece was painted in 1730 by Johann Georg Schmidt.
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.