Etymology and distribution of 三合堂.

Sangoudou 【三合堂】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Hokkaidou , Toukyou-to , Toyama-ken . Terrain . From the place to draw water and water. Niigata-ken Kashiwazaki-shi Takayanagi cho was in the Edo period in Okano-machi. Niigata-ken Shibata-shi Seiji was a place name that was called "Seki Nitta" in the Edo period. Tell the place name from Seki's person's name. 関 Seki reference. Ehime-ken Matsuyama-shi Marunouchi was in the Edo period in the Iyo Matsuyama clan of the Clan office.