Sakata no Kintoki

Kintarō (^?, often translated as "Golden Boy") is a folk hero from Japanese folklore. A child of superhuman strength, he was raised by a mountain hag on Mount Ashigara. He became friendly with the animals of the mountain, and later, after catching Shuten-dōji, the terror of the region around Mount Ooe, he became a loyal follower of Minamoto no Yorimitsu under the new name Sakata no Kintoki (坂田 金時^?). He is a popular figure in Bunraku and kabuki drama, and it is a custom to put up a Kintarō doll on Boy's Day in the hope that boys will become equally brave and strong.

Kintarō is supposedly based on a real man, named Sakata Kintoki, who lived during the Heian period and probably came from what is now the city of Minami-ashigara. 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.

Several competing stories tell of Kintarō's childhood. In one, he was raised by his mother, Princess Yaegiri, daughter of a wealthy man named Shiman-chōja, in the village of Jizodo, near Mount Kintoki. In a competing legend, his mother gave birth to him in what is now Sakata. She was forced to flee, however, due to fighting between her husband, a samurai named Sakata, and his uncle. She finally settled in the forests of Mount Kintoki to raise her son. Alternatively, Kintarō's real mother left the child in the wilds or died and left him an orphan, and he was raised by the mountain witch Yama-uba (one tale says Kintarō's mother raised him in the wilds, but due to her haggard appearance, she came to be called Yama-uba). In the most fanciful version of the tale, Yama-uba was Kintarō's mother, impregnated by a clap of thunder sent from a red dragon of Mount Ashigara.

...
Wikipedia