Etymology and distribution of 広桶.

Hirooke 【広桶】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Shimane-ken Masuda-shi . Thing . From Ryuki. Nagasaki-ken Nagasaki-shi In Yagami-cho I tell you that in 1650 (3rd year in Keio) it was written as "Ryuki." 椋木 Mukunoki reference. Hyougo-ken In Shizou-shi 's Chikusa-cho, tell the descendant of the Heike faints. The pronunciation is Ogura. 小椋 surname. 小椋 Ogura reference. 平 Taira reference.

※ There was a family name of Ryou (Kura) in the Heian era in the southwestern part of Oosaka-fu (formerly Izumi-kuni).