Complex sentence: This document told the exile to the eastern Madurese dukedom of Sumenep of Arya Wiraraja, a royal adviser to the last king of Singhasari, Kertanegara, who eventually became a prominent figure in the creation of the Majapahit empire.
Split into simpler sentences: This document told the exile to the eastern Madurese dukedom of Sumenep of Arya Wiraraja, a royal adviser to the last king of Singhasari, Kertanegara. Kertanegara eventually became a prominent figure in the creation of the Majapahit empire.