Xuan-de: Year 2, Month 7, Day 23
15 Aug 1427
It was ordered that Shan Yun, an assistant commissioner-in-chief in the Auxiliary Rear Military Commission, take on the seal of "General for Subduing the Man" and the post of regional commander in replacement of the Zhen-yuan Marquis Gu Xing-zu. He was to guard Jiao-zhi and lead the government troops who had been deployed from the three regional military commissions in Hu-guang, Guang-xi and Gui-zhou in eliminating the rebellious bandits. Previously, due to crimes, Xing-zu had been arrested and the Emperor ordered the dukes, marquis and senior ministers to propose a good general to replace him. At this time, the senior ministers all advised that Yun was honest, brave and knowledgeable. The Emperor considered him appropriate and thus this order was issued.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 17, page 770