Etymology and distribution of 清和.

Seiwa 【清和】^{レベル4
About 800}  The Japanese surnames etymology dictionary.

Miyagi-ken , Fukushima-ken , Yamagata-ken . Creation . Mr. Tan uses "Wild" as a particle "of". Unknown times. 丹 Tan reference. Miyagi-ken Watari-gun Watari-chou was in the Edo period.

※ Miyagi-ken Natori-shi In Takayanagi say that the descendant of Tada Makoto who is the warrior of the Heian period called further Nano 's surname and renamed. 多田 Tada reference. 只野 Tadano reference.

※ Fukushima-ken Iwaki-shi Onahama Kamihaku Tanno is a place name unknown record era. It is distributed in the same place.