明命帝
For a time, Duyệt's attitude and stature in the south forced Minh Mạng to moderate his policies and allow the preaching of Christian missionaries. However, it also increased the tension between the pair and Minh Mạng was anxious to curtail the autonomy that his father had granted to Duyệt and the southerners. The emperor began to slowly wind back their military powers, in an attempt to wear down Duyệt's power base by gradually removing the general's close aides.