Sri Thammasokkarat

Chronicles present Sri Thammasokkarat as a Tai ruler of Si Satchanalai. In 1181, when the Khmer king Jayavarman VII moved to recover Lavapura, the former Lavo capital, and appointed a kinsman to govern it, Sri Thammasokkarat withdrew under this pressure to Nakhon Si Thammarat on the Malay Peninsula.

Later Thai tradition honours him as founder of that city and first king of the Sri Thammasokaraj dynasty, whose rulers governed the twelve peninsula cities.