Nagura 【名倉】5 The Japanese surnames etymology dictionary.
① There is a 平岡 surname.
② Korean type . Originated in Uljin County, Pyeongheeong Province, South Gyeongsangbukdo. Added "Hei" of the Heian sea on the hill. There is a record of naturalization on Hyougo-ken Amagasaki-shi on August 5, 1958. The real name is a hill. 丘 reference.