Etymology and distribution of 枝廣.

Edahiro 【枝廣】^{レベル3
About 200}  The Japanese surnames etymology dictionary.

Hyougo-ken , Ibaraki-ken .

① Hyougo-ken Shisou-shi Originated from large sand (Oosako) in Yamazaki Town Uwakiya .

② things . From the sand. Ibaraki - ken Hitachi - shi In Shomomi - machi telling that it was renamed at the time of Meiji New Last Name from Osuga surname. It is based in the same place. 大須賀 Oosuga reference.