In 1756, he was appointed to shikoseki (anteroom seats for feudal lords and direct retainer of the shogun at the Edo-jo castle) to which no one had been appointed for 100 years since the first-generation Sadayuki MATSUDAIRA.
宝暦6年（1756年）、初代松平定行以来100年間、途絶えていた伺候席に任ぜられる。