Ooka Tadasuke was a magistrate of Ise Yamada (modern-day Ise City in Mie Prefecture). In 1712, he sentenced a thief who was causing a stir in the village. The culprit was a great-grandson of Tokugawa Ieyasu and the feudal lord of the Kishu domain, who would later become Tokugawa Yoshimune. In fact, previous magistrates had turned a blind eye to Yoshimune’s bad conduct.