Minamoto no Yorimitsu
Kintarō is supposedly based on a real person, Sakata Kintoki, who lived during the Heian period and probably came from what is now the city of Minamiashigara, Kanagawa. He served as a retainer for the samurai Minamoto no Yorimitsu and became well known for his abilities as a warrior. As with many larger-than-life individuals, his legend has grown with time.