The Ouchi clan, which was a notable clan in the Western provinces, collapsed after the death of Yoshinaga however the Yamaguchi clan which was a branch of the clan that separated at an early time, continued to exist until the Edo period.
義長の死により、西国の名門・大内氏は滅亡したが、早くから分かれた傍流の山口氏が江戸時代まで存続した。