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Last name ฤทธิ์สมพงษ์ (ฤทธิ์สมพงษ์ , Rittsompong , Ritsomphong) , in the entire world, is a very rare surname. The family name ฤทธิ์สมพงษ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
VARIANT | COUNTRY |
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Rittsompong, ฤทธิ์สมพงษ์ | Thailand |