His father, Nobutaka UENO was a Busho, who, as a trusted vassal of Yoshitane ASHIKAGA, went down to Saigoku (western part of Japan [especially Kyushu, but ranging as far east as Kinki]) with Yoshitane being driven out of his position of Seii taishogun (literally, "great general who subdues the barbarians") in the Coup of Meio and was appointed the lord of the Kimurayama-jo Castle in Bitchu Province.
父　上野信孝は足利義稙の近臣として、明応の政変において征夷大将軍を追われた義稙に随行して西国に下り、備中国鬼邑山城主に任ぜられた武将であった。