According to the "Sonpi Bunmyaku" (Lineage Sects of Noble and Humble), he was 'a ringleader of robberies and the most excellent military strategist in Japan and an imperial decree of dispatching punitive force against him was issued 15 times.'
『尊卑分脈』によれば、「強盗の張本、本朝第一の武略、追討の宣旨を蒙ること十五度」とある。