 During the Boshin War, the domain quickly supported the imperial side, and participated in the Battle of Utsunomiya Castle, Battle of Kōshū-Katsunuma, Battle of Hokuetsu and Battle of Aizu.In July 1871, with the abolition of the han system, Suzaka Domain briefly became Suzaka Prefecture, and was merged into the newly created Nagano Prefecture.Under the new Meiji government, Hori Naoakira, the last "daimyō" of Suzaka was given the "kazoku" peerage title of "shishaku" (viscount).