Yoshiaki OISHI, became the indirect vassal of Yoshishige IKEDA, a senior vassal of Okayama Domain, wielding power similar to a daimyo (Japanese feudal lord), who governed the Amagi region (valued at 32,000 koku).
その大石良昭と備前国岡山藩の重臣池田由成（天城3万2,000石を領する大名並みの陪臣。