Etymology and distribution of 栢内.

Kayauchi 【栢内】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Kanagawa-ken · Chiba-ken . Occupation . It was the name of Mr. Ki's citizen. It was in the Nara era in the southern part of Kyouto-fu (formerly Yamashiro country). 紀 Kino reference.