Prince Uji no Wakiiratsuko was Imperial prince of the Emperor Ojin, and his mother was Miyanushi Yakahimi [(宮主宅媛), also known as Miyanushi Yagahaehime (宮主矢河枝比売)], a daughter of Hifure no Ohomi [(日触使主); his name was also written in this way "比布礼能意富美") in being an ancestor of the Wani Uji Clan.] [However, according to the "Sendai Kujihongi" (Ancient Japanese History), the mother of Prince Uji no Wakiiratsuko appeared as Yamanashi Hime (山無媛), a daughter of 'Mononobe no Tajima no Muraji' (物部多遅麻連).].
応神天皇の皇子で、母は和珥氏祖の日触使主（ひふれのおみ、比布礼能意富美）の女・宮主宅媛（みやぬしやかひめ、宮主矢河枝比売）である（ただし『先代旧事本紀』には、物部多遅麻連の女・山無媛とする）。