Hirosaki Domain
Tsugaru Tsuguakira was the 4th son of Hosokawa Narimori, the 8th "daimyō" of Uto Domain, a sub-domain of Kumamoto Domain in Kyushu. He married the 4th daughter of Tsugaru Yukitsugu, 11th "daimyō" of Hirosaki Domain, and was adopted as his heir in 1857.