Hayam Wuruk, also called (after 1350) Rajasanagara, Pa-ta-na-pa-na-wu, or Bhatara Prabhu, (1334–1389), was a Javanese King from the Rajasa Dynasty and the fourth monarch of the Majapahit Empire. Together with his prime minister Gajah Mada, he reigned the empire at the time of its greatest power. He was preceded by Tribhuwana Wijayatunggadewi and succeeded by his son-in-law Wikramawardhana. Most of the accounts of his life were taken from Nagarakretagama and Pararaton.