Kingdom of Vientiane
King Taksin of Thonburi angered that King Ong Boun had killed Phra Vo, whom King Taksin regarded as his subject. King Taksin ordered "Chao Phraya" Chakri to invade and capture the Kingdom of Vientiane in 1779. "Phraya" Surasi managed to capture Champasak. King Surinyavong submitted his Kingdom of Luang Phrabang to Siamese rule. The three Lao kingdoms of Luang Phrabang, Vientiane and Champasak then came under Siamese domination. A great number of Lao people were deported "en masse" from Vientiane to settle in Saraburi.