His mother was said to be the paternal half-sister of Yoshinaga OUCHI who succeeded to the family estate of the Ouchi clan in Suo Province; she was also said to be the daughter of Yoshioki OUCHI.
母は大内義興の娘といわれているが周防国大内氏の家督を継いだ大内義長とは異母兄弟にあたるともいわれている。