The Javanese manuscript Nagarakretagama, written by Prapanca in 1365, mentioned Barune as the vassal state of Majapahit,[9] which had to make an annual tribute of 40 katis of camphor. In 1369, the Sulus attacked Po-ni, looting it of treasure and gold. A fleet from Majapahit succeeded in driving away the Sulus, but Po-ni was left weaker after the attack.[10] A Chinese report from 1371 described Po-ni as poor and totally controlled by Majapahit.[11]