Etymology and distribution of 亜宮原.

Akuhara 【亜宮原】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Nagano-ken Matsumoto-shi , Toukyou-to . A variant of the 赤尾 tail. Nagano - ken Matsumoto - shi In the north of the island tells that it changed from Aku 's surname. It was in the Edo period in the same place. 赤尾 Akao reference.