Upon his father's death, he inherited the Okazaki Domain in 1737, and was first introduced by Yoshimune TOKUGAWA in the same year and referred to himself as Daikenmotsu after he was appointed as Jugoinoge.
元文2年に父の死により岡崎藩を相続し、同年徳川吉宗に初めて披露され従五位下に任官し大監物を名乗る。