Saga Domain
Hasunoike Domain was originally a sub-domain of the Saga Domain, founded for Nabeshima Naozumi, the fifth son of the first "daimyō" of Saga Domain, Nabeshima Katsushige. Naozumi was assigned holdings of 52,000 "koku". The headquarters of the domain were within the "san-no-maru" (third bailey) of Saga Castle; later a separate structure, a "jin'ya" in the Hasunoike district of Saga city was erected.