寺内正毅
Terauchi Masatake was born in Hirai Village, Suo Province (present-day Yamaguchi city, Yamaguchi Prefecture), and was the third son of Utada Masasuke, a samurai in the service of Chōshū Domain. He was later adopted by a relative on his mother's side of the family, Terauchi Kanuemon, and changed his family name to "Terauchi".