松本藩
was the 11th "daimyō" of Yunagaya Domain. He was the 3rd son of Matsudaira Mitsutsune, "daimyō" of Matsumoto Domain, and was adopted in 1855 to be heir of Naitō Masatami, who had only four daughters. His courtesy title was "Harima-no-kami", and his court rank was Junior Fifth Rank, Lower Grade. However, he died only 4 years later in 1859 at the age of 24. His grave is at the Naitō Cemetery at Kōmyō-ji in Kamakura.