Etymology and distribution of 海城.

Kaijou 【海城】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Tochigi-ken , Ibaraki-ken Jousou-shi , Toukyou-to . Tochigi-ken Utsunomiya-shi Shinri Town Tell her that it was a small last name. Estimated in around the Warring States Period. 小太刀 Kodachi reference. In the same place there is a belief that Ibaraki-ken gave away from the clans as a result. Unknown times. Ibaraki-ken Jousou-shi Saka cho is based. Akita-ken Akita-shi Chiaki Park is the clan sister of Kuroda, the Chiba-ken Sakura-shi castle town is in the Edo period in the clan sakura of the clan office in the Azuchi-Momoyama period, based on Ibaraki-ken It was.