Etymology and distribution of 都生.

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

Tochigi-ken , Niigata-ken , Gunma-ken . A variant of Sakauchi (Bannai). Tochigi - ken Yaita - shi In the footsteps , tell them that they changed their name from Sakanai surname at Meiji New surname. 坂内 Sakauchi reference.

※ Occupation . From Mr. Tomo's inner palace. 伴 Ban reference.