Yong-le: Year 5, Month 9, Day 11
11 Oct 1407
Chen Qin, a vice commander in the Meng-hua Guard in Yun-nan, was promoted to commander of the Jiao-zhou Right Guard. Previously, Qin had violated the law and had been banished to Jiao-zhi to realize achievements by which to atone for his crime. In the capture of Li Cheng, Qin had realized achievements and thus he was promoted and employed.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 11, page 0995/96