The Achi monastery is a single-nave hall church, built of hewn stone. Constructed at the end of the 13th century or in the early 14th, it was later reroofed, renovated and surrounded by a defensive wall. The whole interior is frescoed. Some murals, stylistically dated to the late 13th century and betraying affinities with the Palaeologan art, are iconographic rarities, such as those depicting the life of Saint George.
The Achi monastery was favored by the Princes of Guria, especially Simon I Gurieli and Kaikhosro I Gurieli in the 17th century. Both made significant donations to the church and Kaikhosro made it a metochion of the bishopric see of Shemokmedi. The abbotship of Achi was then hereditary in the Salukvadze-Taqaishvili family. The church housed a gilded silver cross with a Georgian inscription mentioning the queen Tamar, which was discovered by Ekvtime Taqaishvili. The item was preserved in the Salukvadze family during the Soviet period and returned to the Achi church in 2015.
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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.