Etymology and distribution of 豊座.

Toyokura 【豊座】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Hyougo-ken , Okayama-ken Tsuyama-shi , Oosaka-fu . Tell him that Mr. Akamatsu's descendant got it. Estimated in Hyougo-ken Muromachi era. 赤松 Akamatsu reference. Okayama-ken Aida-gun Nishiawakura-son In Nagao say that it was the castle owner of Kuroyama Castle that was in the same age as Warring States Period. Hyougo-ken Akou-shi Kamakuya was in the Edo period in the Ako clan, Okayama-ken Kurashiki-shi , Kyouto-fu Kyouto-shi of the Clan office.