Etymology and distribution of 清淨.

Seijou 【清淨】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Okayama-ken , Hiroshima-ken , Shiga-ken .

① Topography . From mounds and villages. Hiroshima-ken Miyoshi-shi Distributed in Sanwa Town Feathewa.

※ Ishikawa-ken Nonoichi-shi Mokukazuka (Okyukutsuka) was a place name that was called "Okkazuka village" in the Edo period. It is distributed in the same place.

② Okayama-ken Asakuchi-shi Originated from the Tsukaya of a small underground character in Kamagata Machi. I used "Tsuka" of Tsukaya.