Vlatades Monastery was founded by the brothers Dorotheus and Markus Vlatadon, who were students of Gregory Palamas, in the latter half of the fourteenth century. It was first mention in a letter by Patriarch Matthew dated in 1400 to Metropolitan Gabriel of Thessalonica.
In 1387, Thessalonica and the monastery were occupied for the first time by the Ottoman Turks. While the monastic community held together, the monastery properties were sequestrated as royal property and the main church was converted into a mosque with the frescoes of its interior plastered cover. During the Turkish occupation a unit of Turkish troops, commanded by a cavus, was billeted at the monastery giving rise to the name Cavus Monastir, still often popularly applied to the monastery.
During the latter part of the sixteenth and most of the seventeenth centuries the condition of the Monastery of Vlatadon and its dependencies deteriorated. While supported by a succession of Patriarchs of Constantinople, the monks of the Monastery of Vlatadon attempted to recover and restructure their dependencies in Thessalonica.
By the mid-twentieth century the monastery became a meeting place for scholars and academics of the city. In 1965, the Patriarchal Institute for Patristic Studies was established that has worked closely with the Aristotelean University of Thessalonica. In recent years the Monastery of the Vlatades has been further renovated and expanded.
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.