For the fifth lord of the domain Masamine KOBORI's seven-and-a-half-year service as a position of Wakadoshiyori (junior councilor), the Kobori clan, which was supposed to be a nonhereditary feudal lord, was admitted to amend the status into Fudai Daimyo (hereditary vassals to the Tokugawa family) and was able to wait on a higher-ranked sheat to meet the Shogun.
第5代藩主・小堀政峯は7年半にわたって若年寄を努めたことから、本来なら小堀氏は外様大名であったが、この功績により譜代大名の格式を許され、伺候席となった。