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Family name Phonwongsa (Phonwongsa , พลวงศา
) , across the world, is a very rare cognomen. The cognomen Phonwongsa is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Phonwongsa, พลวงศา | Thailand |
Raemchan, Ubonrat, Ruangtong, and Mayurachat