Imperial Prince Kagosaka was a Prince of the Emperor Chuai, and his mother was Onakatsuhime, a daughter of Prince Hikohito no Oe (Prince Hikohito no Oe was a prince of the Emperor Keiko).
仲哀天皇の皇子で、母は彦人大兄（景行天皇の皇子）の女・大中姫。