Minh Mạng
The revolt was spurred by the prosecutions launched by Minh Mạng against southern factions which had opposed his rule and tended to be favourable to Christianity. In particular, Minh Mạng prosecuted Lê Văn Duyệt, a former faithful general of Emperor Gia Long, who had opposed his enthronement. Since Lê Văn Duyệt had already died in July 1832, his tomb was profaned and inscribed with the words "This is the place where the infamous Lê Văn Duyệt was punished".