Etymology and distribution of 庭久保.

Niwakubo 【庭久保】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Yamanashi-ken , Tottori-ken . Personal name . From the Heian era warrior, Heijunmon (Tyra no Masakado). Tottori-ken Touhaku-gun Misasa-chou In Nakazu it is the descendant of Heijunmon gate and tells that the Edo period was written as "the gate." It is unknown whether the main gate exists. 平 Taira reference.