Etymology and distribution of 井戸家.

Idoie 【井戸家】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Hokkaidou , Toukyou-to · Oosaka-fu . Occupation . A variant of the 五百旗頭 . Recorded in Gifu-ken south (old: Mino country) in 702 (Taiho 2 years). Aichi-ken Ama-shi Shichiba-cho Ikei is a place name with a record since the Heian period. Tell the place name according to Mr. Ito's residence. There is a history that the Itoube shrine in the same place was founded in 730 (Tenpyo 2 years). 五百旗頭 Iokibe reference.