The monastery, along with the Church of St Stephen, was built between 1313 and 1317, founded by Serbian King Stefan Milutin, one of the most powerful rulers of his time and of the Nemanjić dynasty. Milutin built the church as his burial place, and it is where he was first laid to rest. However, following the Battle of Kosovo, his body was moved to Trepča and then in 1460 to Sofia, where it lies to this day. The monastery shared the fate of its founder. The monumental building with its church, library, monks' quarters and "imperial palace" began to fall into disrepair very early. At the beginning of the 15th century, a fire destroyed the library and in the second half of the same century the monastery was probably abandoned. Benedikt Kuprešić, a traveller, mentioned that the monastery was razed to the ground in the 16th century on the orders of the Ottoman Sultan, as Christians who had fled Ottoman tyranny were gathering in it. St Stephen's, almost totally destroyed, was turned into a mosque in the 19th century and served as such until World War I. The first conservation activity was carried out in 1939 and again in 1990, when the church was partly rebuilt. The monastery is one of the few for which the founding charter has been preserved; it was granted a large estate at its founding, of 75 villages and 8 pastures. As the complex was built as the final resting place of a king, the bishopric was "upgraded" to a stavropegial monastery - roughly translated, an Imperial monastery, fourth by rank in the state. The building works were led by Archbishop Danilo II, at that time a prior, later Serbian Archbishop, who was a close confidant to the king. According to medieval sources, as well as oral tradition, Banjska was one of the most beautiful Serbian monasteries, built in the Raška architectural style, which was used for all royal mausoleums, from Stefan Nemanja's Studenica monastery to Emperor Dušan's Monastery of the Holy Archangels. The monastery was declared a Monument of Culture of Exceptional Importance in 1990, and is protected by the Republic of Serbia.