Akatsu 【赤津】5 The Japanese surnames etymology dictionary.
① Topography . From the red field. Kyouto-fu Maidzuru-shi Akano is a place name with a record since the Edo period. Okayama-ken Wake-gun Wake-chou There is a record with "Akano" in the notation of Anendoji in Tendai sect in Izumi in 1468 (Nenin 2 years). It is unknown whether red nose exists. Okayama-ken Tsuyama-shi Yamashita was in the Azuchi-Momoyama period during the Edo era in the Clan san of the Clan Agency, a vassal of Taga Valley who was the castle owner of Shimotsuma castle in Ibaraki-ken Shimotsuma-shi Honjo Town. In Ooita-ken Ooita-ken Usa-shi Azayincho cho Kamiuchiwano originated.