Etymology and distribution of 三之宮.

San'nomiya 【三之宮】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Gifu-ken , Kumamoto-ken , Saitama-ken .

① Topography . Tell Kumamoto-ken from above the river shallow. Kumamoto-ken Kumamoto-shi Chuo-ku Honmaru was in the Edo period in the Kumamoto clan, Saitama-ken Hiki-gun Namegawa-machi Iko in the Clan Office. Good neighbor . Kyouto-fu Ayabe-shi Distributed in ally town.

② Fukushima-ken Fukushima-shi Origin of Setou (Senoie) town. A place name with a record since the Warring States Period. The place name was also written as "Senoko". Miyagi-ken Sendai-shi Aoba-ku Kawauchi was in the Edo era in the Sendai Samurai of the Clan office. There is a tradition to the same clan. The last name is also Senoie.