Etymology and distribution of 城屋.

Shiroya 【城屋】^{レベル2
About 20}  The Japanese surnames etymology dictionary.

Okayama-ken Tsuyama-shi , Miyazaki-ken Nobeoka-shi . Terrain . From the valley. Okayama-ken Tsuyama-shi In Yoshimi, I tell him that Mr. Yamana, who was a castle owner in the Muromachi period in the same town , lived in the valley and set the mountain of mountain name as "valley". It is based in the same place. 山名 Yamana reference. Miyazaki-ken Nobeoka-shi It is distributed in Ono-cho.