The parish church of Ják is the most complete Romanesque Church in Hungary. It was founded around 1220 and consecrated in honor of St. George in 1256. It was originally built as the church of a Benedictine monastery.
During the construction phase, the plans may have been changed several times, as shown by various irregularities. It has a troubled history: damaged by fire, storm, and the Ottoman army, it had to be restored several times.
Its most famous feature is the main entrance, which is recessed inward and has several sections, decorated with Norman motifs, and above which Jesus is depicted in the tympanum with angels and apostles. Opposite the main facade of the church, there is a small chapel. This is the Chapel of St. James, which in the Middle Ages was the church of Jac since the monastery church was not allowed to function as a parish church.
The rotunda has been built with 4 apses and 2 floors.
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.