Nangaku 【南學】1 The Japanese surnames etymology dictionary.
① Topography . From the slope. There are cases where Hira means "sloping ground". Toyama-ken Shimoniikawa-gun It was in the Edo period in Asahi-machi . Toyama-ken Shimoniikawa-gun Asahi-machi Hirayanagi was a place name with a record since the Edo period. It is based in the same place. Good neighbor . Nagano-ken Nagano-shi Aokijima Kozukijima, Wakayama-ken Nishimuro-gun Shirahama-chou There is distribution in the house.