It seems that the rumour of the next Sultan of Yogyakarta has slowly been answered. On Tuesday (May 5), Sri Sultan Hamengku Buwono X has renamed his eldest daughter Gusti Kanjeng Ratu (GKR) Pembayun to be GKR Mangkubumi Hamemayu Hayuning Bawono Langgeng ing Mataram. 36 more words