Hayam Wuruk, also called (after 1350) Rajasanagara, (1334 -1389), was the ruler of the Javanese Hindu state of Majapahit at the time of its greatest power.

He inherited the throne in 1350 at the age of 16, when the great patih (prime minister) Gajah Mada was at the height of his career. Under his rule, Majapahit extended its power throughout the Indonesian archipelago.

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