Central Thailand
Like many Isan people and more specifically, other ethnic Lao groups of Central Thailand, the Lao Ga are descendants of slaves and forced corvée labourers brought after the Siamese conquest of the successor kingdoms of Lanxang, mostly from the region of Vientiane. This makes them historically related to the Lao Wiang. Although many Lao groups assimilated into the greater Thai population (unlike in Isan where their large numbers and close contact with other Lao peoples in Laos prevented complete Thaification), the Lao Ga were able to maintain their Lao language and traditions.