The Bachkovo Monastery of the Dormition of the Theotokos ( "Успение Богородично", Bachkovski manastir, , Petritsonis Monasteri), archaically the Petritsoni Monastery or Monastery of the Mother of God Petritzonitissa is a major Eastern Orthodox monastery in Southern Bulgaria. It is located on the right bank of the Chepelare River, 189 km from Sofia and 10 km south of Asenovgrad, and is directly subordinate to the Holy Synod of the Bulgarian Orthodox Church. The monastery is known and appreciated for the unique combination of Byzantine, Georgian and Bulgarian culture, united by the common faith. History The monastery was founded in 1083 by Prince Gregory Pakourianos, a prominent statesman and military commander in the Byzantine service, as a Georgian-dominated Orthodox monastery. He set up a seminary(school) for the youth at the monastery. The curriculum included religion, as well as mathematics, history and music. In the 13th century, the Georgian and Chalcedonic Armenian monks of the Petritsioni (Bachkovo) Monastery lost their domination over the monastery, but their traditions were preserved until the beginning of 14th century and an Armenian Gospel from the 10th century that came from this monastery still exists today. During the time of the Second Bulgarian Empire, Bachkovo Monastery was patronized by Tsar Ivan Alexander, which is evidenced by an image of him on the arches of the ossuary's narthex. It is believed that the founder of Tarnovo Literary School and last patriarch of the mediaeval Bulgarian Orthodox Church, Patriarch Euthymius, was exiled by the Turks and worked in the school of the monastery in the early 15th century. Although the monastery survived the first waves of Turkish invasion in Bulgarian lands, it was then looted and destroyed, but restored near the end of the 15th century. The refectory, whose mural paintings by an anonymous painter bear a significant artistic value, was reconstructed in 1601 and the Church of Mary, still preserved today, was finished in 1604. Bachkovo Monastery is the final resting place of both Patriarch Euthymius (1330–1404) and Patriarch Cyril (1953–1971). Complex Ossuary The only part that has survived from the monastery's original structure is the ossuary, which has a specific architectural design and ancient frescoes, and is situated 300 m away from the contemporary monastery complex. It looks inaccessible when viewed from the north. The building has two storeys, of which only one can be seen from the south. From architectural point of view the plan of