Yong-le: Year 19, Month 4, Day 11
12 May 1421
Ba-du-jia Su-li, the uncle of the Eastern king of the country of Sulu, and others, who had been sent by the king's mother, offered tribute of local products. Headwear and a belt, a suit of clothing, paper money, ramie-silk, patterned brocades, silk gauzes and variegated thin silks were conferred upon Ba-du-jia Su-li. His followers were also rewarded as appropriate.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 14, page 2264