ヴィエンチャン王国
A potentially dangerous event occurred with the Anouvong's Rebellion in 1827, when the troops of the actually tributary king Anouvong of Kingdom of Vientiane advanced towards Bangkok. They were, however, destroyed, which strengthened the position of Siam in Laos. The Lao-population of the areas west of the Mekong were relocated to Thai provinces in Isan.