There they find a boy known as Kintarō, who had been brought up among animals and endowed with superhuman strength. In one such tale, Tsuna accompanies Raikō to the hut of Yamamba, a man-eating hag. Tsuna features in many of Yorimitsu's legendary adventures, and aids him in fighting many monsters, beasts and demons. In legend "A Strange Account of the Destruction of the Bandits by the Elite Four" (Watanabe no Tsuna, Minamoto no Yorimitsu, Urabe no Suetake, and Fujiwara no Yasumasa.), Yomihon book by Utagawa Toyokuni and Takizawa Bakin. He was the stepgrandson of the Seiwa Genji and Chinjufu-shōgun Minamoto no Mitsunaka (912-997), and was companion in arms to his step uncle Minamoto no Yorimitsu (944–1021). Tsuna established the Watanabe branch of the Minamoto clan, taking the name from his stronghold at Watanabe, in Settsu Province, and in 1020 he was appointed 'Tango no kami' (Governor of Tango Province). He was the son of Minamoto no Atsuru (933-953) married to a daughter of Minamoto no Mitsunaka, grandson of Minamoto no Mototsuko (891-942), great-grandson of Minamoto no Noboru (848-918), and great-great-grandson of Minamoto no Tōru (822-895), son of the Emperor Saga (786-842), the 52nd Emperor of Japan. Watanabe no Tsuna was a samurai of the Saga Genji branch of the Minamoto clan, and his official name was Minamoto no Tsuna. For this reason, some families with the surname Watanabe have not practiced the custom of throwing beans on Setsubun for generations. īecause Watanabe no Tsuna is associated with the legend that he vanquished oni historically considered to be the strongest, such as Shuten-doji and Ibaraki-doji, there is a tradition that oni stay away from people named Watanabe and their houses. Watanabe no Tsuna was the first person to take the surname Watanabe, and Watanabe is the fifth most common surname in Japan, with approximately 1.08 million people as of 2017. Watanabe no Tsuna ( 渡邊 綱) (953–1025) was a Japanese samurai, a companion in arms of Minamoto no Yorimitsu (also known as Raikō), one of the earliest samurai to be famed for his military exploits in a number of tales and legends. "Watanabe no Tsuna meets Ibaraki-dōji at Modoribashi Bridge." Ukiyo-e print by Utagawa Kunisada. Further details may exist on the talk page. Please expand the article to include this information. This article is missing information about the history of the subject.