Wikipedia
Jayakatwang
Jayakatwang (died 1293) was the king of short lived second Kingdom of Kediri of Java, after his overthrow of Kertanegara, the last king of Singhasari. He was eventually defeated by Raden Wijaya, Kertanegara's son-in-law using the troops of the Mongol Yuan dynasty that were invading Java. Raden Wijaya would later turn against the Mongols and found Majapahit, the greatest empire in Java.