During the Edo Period and from Hansekihokan (return of lands and people to the emperor) in 1869 through Haihanchiken (abolition of feudal domains and establishment of prefectures) in 1871, the office of Hikone Domain was placed in the castle.
江戸時代および明治2年（1869年）の版籍奉還後から明治4年（1871年）廃藩置県まで彦根藩の役所が置かれた。