Etymology and distribution of 真形.

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

Oosaka-fu · Kyouto-fu . Oosaka-fu Matsubara-shi Distributed in Ogawa.

* There was a case that Yamaguchi-ken was called by descendants of Mr. Ouchi, who was the base of the Kamakura period and Muromachi period. 大内 Oouchi reference.