According to the "Kojiki" (The Records of Ancient Matters) and the main text and the first addendum to the Nihonshoki, he was the third son, but the second addendum mentions he was the second son and the fourth addendum describes him as the fourth son, however the third addendum to the Nihonshoki did not mention him.
古事記および日本書紀本文・第一の一書では三男、日本書紀第二の一書では二男、第四の一書では四男となっており、第三の一書では登場しない。