Just to the north and completely overshadowed by St Mary's Church, sits the small Royal Chapel, squeezed between two houses. The only Baroque church in old Gdańsk, it was built between 1678 and 1681 to fulfil the last will of the primate of Poland of the time, Andrzej Olszowski. It was designed by famous royal architect Tylman van Gameren. Its façade is its more attractive feature, and bears the coats of arms of Poland, Lithuania and King Jan III Sobieski (the founder of the chapel).
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.