Etymology and distribution of 大左古.

Oosako 【大左古】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Hyougo-ken Miki-shi . Occupation . A variant of the 忍海部 . Hyougo-ken Miki-shi In Shimmyomachi, I will tell him that Mr. Oshimubu has come home during the Kofun period. 忍海部 Oshikaibe reference.