They were a powerful merchant clan of Hirano-go, Sumiyoshi-gun, Settsu Province (present-day Hirano-ku, Osaka City), along with the Tojiro HIRANO and Kuemon HIRANO of the same clan.
彼らは摂津国住吉郡平野郷(大阪市平野区)の豪商で、同族の平野藤次郎、平野九右衛門も頭役となった。