Valencia Cathedral was consecrated in 1238 by Pere d'Albalat, Archbishop of Tarragona, and was dedicated to Saint Mary by order of James I the Conqueror. It was built over the site of the former Visigothic cathedral, which under the Moors had been turned into a mosque.
Most of Valencia Cathedral was built between the 13th century and the 15th century, and this style was mainly Gothic. However, its construction went on for centuries. As a consequence there is a mixture of artistic styles, ranging from the early Romanesque, Valencian Gothic, Renaissance, Baroque and Neoclassical.
The cathedral contains numerous 15th-century paintings, some by local artists (such as Jacomart), others by artists from Rome engaged by the Valencian Pope Alexander VI who, when still a cardinal, made the request to elevate the Valencian See to the rank of metropolitan see, a category granted by Pope Innocent VIII in 1492.
A purported Holy Chalice, believed by many to be the true Holy Grail, is revered in one of the cathedral's chapels. It has been the official chalice for many popes. This chalice with Arabic inscriptions dates from the 1st century, and was given to the cathedral by king Alfonso V of Aragon in 1436.
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.