Satchō Alliance
The Tsugaru clan sided with the Satchō Alliance in the Boshin War of the Meiji Restoration, and was rewarded by the new Meiji government with an additional 10,000 "koku". However, with the abolition of the han system on August 29, 1871, Hirosaki Domain was abolished, and replaced by Hirosaki Prefecture. The prefecture was renamed Aomori Prefecture in October of the same year, and the prefectural capital was relocated to the more centrally located Aomori.