Built in 1645, the tomb of Sultan Agung Hanyokrokusumo (the third king of the Mataram Kingdom), is on the peak of the cemetery. Sultan Agung became famous for his courage in fighting against the Dutch colonialists in 1628. All the kings of the Mataram Kingdom and their families are buried in Imogiri. You have to climb 345 stairs to reach the top of the hill where the tombs are located. Please note that visitors are obligated to wear traditional Javanese clothes. The cemetery is located on a beautiful hill about 12 kms from Yogyakarta.