The Yamauchi family was then under the protection of the Oda clan (the head was Nobuyasu ODA, subsequently Nobukata ODA) of Iwakurajo Castle (Owari Province), and his father, Moritoyo, was a chief vassal.
当時山内家は岩倉城(尾張国)織田氏（当主は織田信安、のち織田信賢）の配下であり、父・盛豊は家老として仕えていた。