Chidou 【知童】1 The Japanese surnames etymology dictionary.
① Birth of Nagano-ken Nagano-shi river Nakajima cho Miyako Kita-do. In the Kamakura period there was a place name with a record of "wealth". Gunma - ken Agatsuma - gun Tsumagoi - mura In Tashiro it is said that he resides in 1772 and 1772 (Meiwa years) and lore in 1953 (astronomy 22 years) in Nagano - ken Nagano - shi to 1564 ) Lost the battle of Kawanakajima and lived there.
② Kanagawa-ken birthplace of Yokohama-shi West Border . A place name with a record since the Warring States Period. There is also a story that the name of the place is also written as "wealth" according to Mr. Tobe's residence.