Tokugawa Ienari
Ōta Sukemoto was the third son of Hotta Masazane, "daimyō" of Omi-Miyagawa Domain. He was selected as posthumous heir on Ōta Suketoki's sudden death in 1810 and married to one of Suketoki's daughters. At the time, he was only eleven years old. He was received in formal audience by "Shōgun" Tokugawa Ienari in 1812 and was appointed a "sōshaban" in 1818.