The Sultanate of Yogyakarta, officially the Sultanate of Ngayogyakarta Hadiningrat, is a Javanese monarchy in Yogyakarta Special Region, in the Republic of Indonesia. The current head of the sultanate

Sri Sultan Hamengkubuwono VI, also spelled Hamengkubuwana VI, was the sixth Sultan of Yogyakarta of the Yogyakarta Sultanate, who reigned from 1855 until 1877. He succeeded his older brother, Hamengku