Dadivank Monastery (also Khutavank) is the largest monastic complex in Artsakh-Karabakh and one of the true masterpieces of Armenian medieval architecture. It is located in the northwestern part of Martakert district of the Nagorno Karabakh Republic, on the territory of Artsakh’s historical province of Upper Khachen. According to the legend, the monastery was founded at the end of the 1st century AD and named after one of apostle Judes disciples, St. Dadi, who martyred preaching Christianity in the Eastern Territory of Armenia. Dadivank was first mentioned in medieval chronicles in the 9th century. The monastic complex of Dadivank consists of the Memorial Cathedral (Katoghike), Church of the Holy Virgin, Chapel, Memorial Bell-Tower and several auxiliary buildings. In the 5th century, the temple became the residence of the Bishop of Aghvan, while afterward it was turned into one of the most significant educational and enlightening centers of that region.