Emperor Yūryaku
Japan's "Nihonshoki" gives his birth year as 461, and describes him as the son of the 21st king Gaero. It is said Buyeo Gonji, the brother of King Gaero went to Japan to serve Emperor Yūryaku with King Muryeong's mother, and she went into labor as their ship was passing by a small Japanese island. He was called Semakishi (嶋君) and King Shima (斯麻王) in Japanese records because he was born in an island.