Etymology and distribution of 信保.

Nobuyasu 【信保】^{レベル3
About 80}  The Japanese surnames etymology dictionary.

Fukui-ken , Kumamoto-ken , Fukuoka-ken .

① Creation . From the favorable "increase", "ei". Fukui - ken Fukui - shi In the main village Imamura tell Fukui - ken Fukui - shi descendants of the vassal of Mr. Asakura who retired in Tokuo Town. Estimated in the Warring States Period. 朝倉 Asakura reference. Fukui-ken Sabae-shi Yaeri town was in the Edo era in the Sabae clan in the clan office. Kagoshima-ken Kagoshima-shi From the Tomonaga gate of the gate division system in the Edo period in the Kiwa Entohama town.

② Kumamoto-ken Arao-shi Birth of Masanaga. A place name with a record in the notation of "Masunaga" during the Warring States Period.

Shinpo 【信保】^{レベル3
About 80}  The Japanese surnames etymology dictionary.

Iwate-ken Ichinoseki-shi , Miyagi-ken Sendai-shi . Terrain . A variant of 田ノ崎 .

※ Iwate-ken Ichinoseki-shi In Hijikata - machi Iwanatsu Nakamachi tells that Miyagi-ken was a castle owner of Tanosaki Castle in Oshika-gun. In tradition, "Yuga District". There is also a passage from Tanozakihama's place name. Period, location unknown.