However, Yoshitsuna abandoned this and ran away, and Yoshimichi, his older brother by a concubine, succeeded to this 1000 koku because he was a cousin of Masachika OKAMOTO and his daughter's husband.
しかし義綱はこれを捨て出奔し、義綱庶兄の義通が岡本正親の甥であり娘婿である関係からこの1000石を継いだという。