Uenglingen gate was built ca. 1450-1460 and is regarded to be amongst the finest late medieval city gates amongst those built in the northern German brick Gothic style, only surpassed by the Holsten Gate in Lübeck. The gate is believed to have been built by Stefan Boxthude, one of the most reknowned masterbuilders of the 15th century. The gate's tower, boasting sheer rounded ramparts, was originally the main gate of larger defensive fortifications that also included a foregate and a ward (a courtyard enclosed by a circular wall).
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.