St. Michael's church in Aachen was built for the Jesuit Collegium in 1617-1628 and is now a church of the Greek Orthodox Metropolis of Germany.
With the dissolution of the Jesuit Order in September 1773 the church was closed and converted into a granary during the French period, later it was used as a parish church. In 1987 the Greek Orthodox community of St. Dimitrios which was found in 1963 purchased the building. Beside Orthodox services also ecumenical services are held in it. Recently, due to its good acoustics and location the church enjoys an increasingly popularity by choirs and orchestras.
The three-galleried basilica was built between 1617 and 1628, and the tower between 1658 and 1668 which this is oriented to the northwest and is located at the front of the choir. The building is stylistically attributed to the Rhine mannerism. Due to the many similarities of the design and the execution of both the Jesuit church in Molsheim and Church of the Assumption in Cologne the church is attributed to the Baroque architect Christoph Wamser. However, the vertically structured facade of the Renaissance-building remained unfinished until 1891 when the historistic architect Peter Friedrich Peters added some parts. In the niches there were once small statues, but they were stolen a few years later. The now empty niches are illuminated today. During the Second World War the building was badly damaged, the reconstruction of simplified roof was held until 1951. Orthodox paintings in the interior were added in 1997 and 2002 by the artist Christophanis Voutsinas.
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.