Tokugawa Ieshige
was the 4th "daimyō" of Yunagaya Domain. He was the son of Naitō Masasada and became "daimyō" at the age of two on his father’s death in 1722. He was received in formal audience by Shōgun Tokugawa Ieshige in 1755. His wife was a daughter of Kuroda Naokuni, "daimyō" of Shimodate Domain. His courtesy title was "Harima-no-kami", and his court rank was Junior Fifth Rank, Lower Grade. He died in 1741 in Yunagaya shortly after returning from "sankin kōtai" in Edo at the age of 31. His grave is at the temple of Ryūshō-ji in Iwaki, Fukushima.