Jia-jing: Year 28, Month 4, Day 14
10 May 1549
Previously, the Annam Commander Mo Fu-hai had died of illness, while his son Hong-yi was still a juvenile. The yi chieftain Ruan Jing planned to establish his son-in-law Mo Jing-dian as ruler, while Fan Zi-yi planned to establish [Mo] Zheng-zhong of their clique as ruler. There was feuding and killing between the sides. Zheng-zhong was defeated and he brought 100-plus of his clique to allegiance. It was Imperially ordered that they be received and the border officials were ordered to conduct a full investigation into whom should be established as ruler. At that time, Zi-yi collected the remnant troops and fled to Hai-dong. He then falsely stated that Hong-yi was dead and, using the pretext of bringing Zheng-zhong back as ruler, they rushed across and attacked areas in Lian-zhou and Qin Subprefecture, capturing the Guard Commander Sun Zheng and killing the Company Commander Xu Zhen. The Guang-dong coast was greatly disturbed and the Censor Huang Ru-gui, regional inspecting censor of Guang-dong, advised of this. The ministry officials held: "Zheng-zhong has led his people in coming to allegiance and they have already been settled. Zi-yi is wandering the oceans, and it is necessary to investigate his crimes and decide whether to eliminate or pacify him. Also, in respect of the tussle for the ruling post, the pacification officials should be instructed to swiftly investigate and report, so that there can be further deliberation." The Emperor approved this and sternly charged the regional commander and grand defender with the task of driving off or eliminating the intruders so as to pacify the borders, noting that anyone who caused losses through being inattentive or dilatory would be punished without pardon.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 85, page 6290