The Japanese surnames etymology dictionary.
Akita-ken Daisen-shi . Thing . Akita-ken Daisen-shi From Konomi Temple that was within Tamimi. The shrine of the Yahata shrine in the same place tells that the name of the temple was named after the Heian period warrior Genju in commemoration of victory in the role of three years after 1083 (Year 3 years) to 1087 (the first year of Kōji) . 源 reference.