Acting in concert with Tadaakira MIZUNO, a prominent figure during the Bunka and Bunsei periods, Yasuto MATSUDAIRA naturally climbed up the ranks by following in his steps and assumed a post as roju.
文化(元号)・文政期の幕府の実力者水野忠成に歩調に合わせ、彼に追随する形で順当に昇役し、老中に就任する。