The strongest heihoka in Japan' is considered to be identical with 'the strongest heihoka in Japan, Yoshioka' in the inscription of "Shinmen Musashi Harunobu Niten Koji-Hi" ("Kokura Hibun"), and that 'Yoshioka' is considered to be the Yoshioka School of Heiho (art of warfare).
「天下の兵法者」は、『新免武蔵玄信二天居士碑』（以降、『小倉碑文』）に記された「扶桑第一之兵術吉岡」すなわち吉岡家と考えられる。