King of Phraek Si Racha

Chinese name	帕艾·西拉查国王
Life	?—?
Country	Lavo
Birthplace	Phraek
Dynasty	Phraek Si Racha
Culture	Thai
Religion	Theravāda

From the mod
Descriptions for Every Historical Character

Thai chronicle genealogy records the second king of the Tritrueng line as ruler of Phraek Si Racha and later king of Lavo, and names Son Sai among his children.

References

en.wikipedia.org/wiki/Family_tree_of_early_and_legendary_Thai_monarchs