明命帝
King Anouvong along with his sons Prince Raxavong Ngao and Prince Sutthisan Po and his whole family consisting of about 500 people left Vientiane in March 1827. They sailed along the Mekong, reaching Nakhon Phanom. From Nakhon Phanom, they continued by land to Mahaxay and proceded through Muang Phuan to Nghệ An Province. King Anouvong stayed at Quỳ Hợp. Emperor Minh Mạng sent Phan Văn Thúy to lead Vietnamese regiment to guard the Lao-Vietnamese borders at Nghệ An against possible Siamese pursuits. Lê Văn Duyệt and Hoang Kim Hoan proposed to Emperor Minh Mạng to engage a full-scale war against Siam to restore Anouvong to Vientiane. Minh Mạng, however, preferred to uphold the stability of Lao-Vietnamese borders. Anouvong sent Prince Raxavong Ngao to meet the Vietnamese emperor at Huế.