According to the "Nihonshoki" (Chronicles of Japan), after Emperor Chuai died, the successor to the Imperial throne, Emperor Ojin was just born, thus his mother, Empress Jungu became the regent.
日本書紀によると、仲哀天皇の崩御後、世継ぎの応神天皇が生まれたばかりであり、その母の神功皇后が摂政となったという。