Etymology and distribution of Japanese surnames.

The Japanese surnames etymology dictionary.
https://play.google.com/store/apps/details?id=info.jigensha.jcedfreeGoogle Play で手に入れよう https://apps.apple.com/us/app/id1471109324
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福井県 越前市 下文室町の名字

Very rare 【堤野】3
Very rare 【宮本】7
Very rare 【山本】7