In the valley of the Roussenski Lom River, in north east Bulgaria, a complex of rock-hewn churches, chapels, monasteries and cells developed in the vicinity of the village of Ivanovo. The caves in the region had been inhabited by monks from the 1220s, when it was founded by the future Patriarch of Bulgaria Joachim I, to the 17th century, where they hewed cells, churches and chapels out of solid rock. At the peak of the monastery complex, the number of churches was about 40, while the other premises were around 300, most of which are not preserved today.
Second Bulgarian Empire rulers such as Ivan Alexander and Ivan Asen II frequently made donations to the complex, as evidenced by donor portraits in some of the churches. Other patrons included nobles from the capital Tarnovo and nearest big medieval town Cherven, with which the monastery complex had strong ties in the 13th and 14th century. It was a centre of hesychasm in the Bulgarian lands in the 14th century and continued to exist in the early centuries of the Ottoman rule of Bulgaria, but gradually decayed.
The monastery complex owes much of its fame to 13th- and 14th-century frescoes, preserved in five of the churches, which are thought of as wonderful examples of Bulgarian mediaeval art. The rock premises used by the monks include the St Archangel Michael Chapel ('The Buried Church'), the Baptistery, the Gospodev Dol Chapel, the St Theodore Church ('The Demolished Church') and the main Church, with the 14th-century murals in the latter one being arguably the most famous of all in Ivanovo and noted as some of the most representative examples of Palaeologan art.
Many century-old inscriptions have also been preserved in the monastical premises, including the famous indented inscription of the monk Ivo Gramatik from 1308–1309.
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.