It is also said that he was the second (or the third) son of Ugayafukiaezu (a Japanese deity, the father of Emperor Jinmu) and the daughter of Watatsumi no kami (tutelary of the sea), Princess Tamayoribime.
ウガヤフキアエズ（ウガヤフキアエズ）と海神の娘であるタマヨリビメの二番目の子（第三子とも）。