Tadahiro took an active role as a key person of the cabinet officials of the Shogunate in Bunka-Bunsei period; he was engaged in all the posts which were deemed as a gateway to the cabinet officials of the Shogunate such as jisha-bugyo (magistrate of temples and shrines), wakadoshiyori (a managerial position in Edo bakufu), Osaka jodai (the keeper of Osaka Castle), Kyoto shoshidai (The Kyoto deputy), and served as roju (member of shogun's council of elders) for 30 years after he was employed in 1804.
忠裕は、寺社奉行、若年寄、大坂城代、京都所司代と、およそ幕閣の登竜門とされるポストを残らず勤め、文化(元号)元年（1804年）老中に起用され30年以上勤めるなど、文化文政期の幕閣の中心人物として活躍した。