Etymology and distribution of 伍呉.

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

Miyagi-ken , Oosaka-fu , Ibaraki-ken . Originated from Oosaka-fu Oosakasayama-shi . A place name with a record since the Nara period. In the Heian era there was Sayama Ren's last name.