Aki Province
The Hiroshima Domain was based at Hiroshima Castle in Aki Province, in the modern city of Hiroshima, located in the Chūgoku region of the island of Honshu. The Hiroshima Domain was ruled for most of its existence by the "daimyō" of the Asano clan and encompassed Aki Province and parts of Bingo Province with a "Kokudaka" system value of 426,500 "koku". The Hiroshima Domain was dissolved in the abolition of the han system in 1871 by the Meiji government and its territory was absorbed into Hiroshima Prefecture.