Mizuno Tadayuki was lord of Okazaki castle. He was named wakadoshiyori on 1711/12/23, becoming one of the rôjû six years later, on 1717/9/27. He also served as Kyoto shoshidai, from 1714/9/6 until becoming rôjû. In 1722/5, he was named katte-gakari rôjû, a top-level position overseeing financial matters for the shogunate.
- Arai Hakuseki, Joyce Ackroyd (trans.), Told Round a Brushwood Fire, University of Tokyo Press (1979), 315n108.
- Watanabe Kazutoshi 渡辺和敏, "Sankin kôtai to honjin" 参勤交代と本陣, Honjin ni tomatta daimyô tachi 本陣に泊まった大名たち, Toyohashi, Aichi: Futagawa-juku honjin shiryôkan (1996), 54.