Zheng-tong: Year 10, Month 6, Day 22
26 Jul 1445
The Commissioner-in-chief of the Left Mu Ang, regional commander of Yun-nan, died. Ang was the third son of the Qian-ning Zhao-jing Prince. During the Hong-wu reign (1368-98), he was appointed as cavalier attendant houseman. He was then promoted to assistant guard commander in the Fu-jun Left Guard. In the early years of the Yong-le reign (post-1403), he was promoted to deputy commissioner in the Yun-nan Regional Military Commission. In the first year of the Hong-xi reign (1425), he was promoted to vice commissioner-in-chief of the Right Military Commission and took command of the affairs of the commission. In the 10th year of the Xuan-de reign (1435/36), he was promoted to commissioner-in-chief of the right and received Imperial orders appointing him as grand defender of Yun-nan. In the third year of the Zheng-tong reign (1438/39), he proceeded on expedition against Lu-chuan. For his achievements, he was promoted to commissioner-in-chief of the left. Subsequently, it was ordered that he take on the seal of "General for Subduing the South" and take on the post of regional commander and again lead the troops of the various forces on an expedition against Lu-chuan. They were greatly defeated and he was demoted to vice commissioner-in-chief, but remained grand defender of Yun-nan. In the seventh year (1442/43), he was promoted to commissioner-in-chief of the right and accompanied the army which was proceeding on expedition against Lu-chuan. On his return, he was promoted to commissioner-in-chief of the left. At this time, he died. When the death was announced, officials were sent to offer funeral sacrifices.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 28, page 2594/95