Two different theories exist as to his place of birth: one claims he was born in Fujioka in Kozuke Province (Fujioka City in Gunma Prefecture today), while the other asserts he was born in Edo (modern-day Tokyo).
上野国藤岡（現在の群馬県藤岡市）で生まれたとの説と、江戸（現在の東京都）で生まれたとの説がある。