Xuan-de: Year 8, Month 10, Day 1
12 Nov 1433
In Yun-nan, the Niu-wu Chief's Office was established. Niu-wu, Wu-long and other stockades lay in He-ni territory. At this time, their chiefs Ren-zhe and Tuo-bi came to Court to offer tribute. When they came to the capital, they memorialized that their land was distant, where there were many yi people and fan. They requested that offices be established and officials appointed to govern the people. The Auxiliary Ministry of War requested that Wu-long be merged with Niu-wu and that a Niu-wu Chief's Office be established. This was approved. Subsequently Ren-zhe was appointed as Chief and Tuo-bi and others were appointed as deputies.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 21, page 2370