In 1332 the inhabitants of quarter of San Vito moved near the castle of the Counts of Modica, and for this reason a new mother church was built in the same place where the present one is located and it is dedicated to Our Lady of the Assumption. This church opened to worship in 1402, was built in a Catalan-Gothic style with a nave and two side aisles and had a wooden ceiling and side chapels not aligned. It was enlarged and modified in 1471, 1530-1558 and 1581.
Today we can only see the bell tower with double lancet windows (restored in 1942), the chapel of the Holy Thorn and the Baptistery.
The church was rebuilt in 1669 by Giuseppe Diamante and Angelo Italia, while the neo-classical façade was realized in 1786 by Emanuele Cardona.
The garden adjoining the church, since the 15th century, was used as a cemetery for poor people, with an altar where to celebrate Mass during maladies and a stone cross with an aedicula sacred to Our Lady of Mercy. In the 20th century it became a public garden and in 1929 they placed the War Memorial, realized by Bentivegna, a sculptor from Sciacca.
The church has a basilican plan with a nave and two side aisles which are divided by two rows of columns with monolithic marble shafts extracted from the near mount Bonifato. The stuccoes were made by the Curtis, while the floor was realized on the architect Giuseppe Patricolo's plan.
The interior contains 38 frescos by Guglielmo Borremans.
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.