According to a Chinese source in the book of Chu-fan-chi written around 1225, Chou Ju-kua described that in the Southeast Asian archipelago there were two powerful and rich kingdoms: Srivijaya and Java (Kediri).
Regarding Srivijaya, Chou-Ju-Kua reported that Kien-pi (Kampe, in northern Sumatra) with armed forced rebellion had liberated themselves from Srivijaya, and crowned their own king.