Yogyakarta HistoryMataram Kingdom (8th – 10th century CE)According to Canggal inscription dated 732, the area traditionally known as "Mataram" became the capital of the Medang Kingdom, identified as Mdang i Bhumi Mataram established by King Sanjaya. Mataram became the center of a refined and sophisticated Javanese Hindu-Buddhist culture, for about three centuries its heartland in Kewu Plain (southern slope of Mount Merapi) around Prambanan witnessed the construction of numerous candi including Borobudur and the year 929, the centre of the kingdom was shifted to East Java by Mpu Sindok, who established the Isyana Dynasty. The exact cause of the move is still uncertain; however, a severe eruption of Mount Merapi volcano or a power struggle probably caused the move. Historians suggest that, some time during the reign of King Wawa of Mataram (924–929), Merapi volcano erupted and devastated the kingdom's capital in Empire (1293–1527)During the Majapahit era, the area surrounding modern Yogyakarta was identified again as "Mataram" and recognized as one of the twelve Majapahit provinces in Java ruled by a Duke titled 'Bhre Mataram'. During the reign of Hayam Wuruk (1350 to 1389), the title of Bhre Mataram was held by king's nephew and son in-law Wikramawardhana.