Etymology and distribution of 知童.

Chidou 【知童】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Ibaraki-ken , Fukushima-ken , Toukyou-to . Distribution that also includes Nabatame. A variant of 生田目 . Yamanashi-ken Tells Tanumaku Mountain that Takeshi was destroyed in 1582 (Tensho 10 years), so the vassal said in the meaning of "living in Tenmayama".