Soya 【蘇谷】1 The Japanese surnames etymology dictionary.
Toukyou-to , Ehime-ken . Distribution including senna. Ehime-ken Saijou-shi Distributed in Kawarazu. There is 千葉 surname in the same place. Ehime-ken Saijou-shi Tanbara-machi Chihara · Kurano's Senba Kake (Senbagadake) is a place name unknown in the record era. Ishikawa-ken Kahoku-shi , Ishikawa-ken Kanazawa-shi Marunouchi was in the Edo period in the Kaga clan in the Clan office.