Yong-le: Year 3, Month 7, Day 18
12 Aug 1405
A gold belt, suits of clothing made from patterned fine silks, 18 bolts of brocade, 150 liang of silver and 600 ding of paper money were conferred upon Na Rong, the prefect of Yuan-jiang in Yun-nan. Paper money and silks as appropriate were conferred upon his attendants. The prefecture was raised to Yuan-jiang Military and Civilian Prefecture and a seal was provided to it.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 10, page 697