Jia-jing: Year 17, Month 3, Day 28
26 Apr 1538
It was Imperially commanded that the grand defender of Ning-xia, the Xian-ning Marquis Qiu Luan, return to the capital. It was ordered that he take on the seal of "Deputy General for Subduing the Yi" and assume the post of regional commander to exercise overall command of all military affairs of the Southern expedition. The Ministry of Works and Superintendent of Construction Mao Bo-wen was transferred to the post of Minister of War and concurrently censor-in-chief of the right to assist in the supervision of all military affairs of the Southern expedition.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 80, page 4344