Tokugawa Ieharu
Akikatsu was born at the Sabae Domain's Edo residence as the fifth son of Manabe Akihiro. He became "daimyō" on the death of his uncle Manabe Akisane in 1814. Under Shōgun Tokugawa Ieharu he served in a variety of positions in the Tokugawa shogunate, including "Sōshaban", "Jisha-bugyō", "Osaka jōdai", "Kyoto Shoshidai" and became "rōjū" in 1840. However, due to political disagreements with Mizuno Tadakuni, he was forced from office in 1843.