On August 11, 1833 Kogoro WADA was born as the first son of Masakage WADA, who was a physician of the Hagi clan, and whose residence was located at Hagi Gofuku-machi, Nagato Province (present-day Hagi City, Yamaguchi Prefecture).
天保4年6月26日(旧暦)（1833年8月11日）、長門国萩呉服町（今の山口県萩市）萩藩医和田昌景の長男として生まれる。