Emperor Seinei (清寧天皇) was the 22nd imperial ruler of Japan. No firm dates can be assigned to this emperor or to his reign, but he is believed to have ruled the country during the late 5th century CE.
According to Kojiki and Nihonshoki, he was a son of Emperor Yuryaku. His name in birth was Shiraka. After the death of his father, Seinei won the fight against Prince Hoshikawa, his brother, for the throne and so succeeded his father. He reigned from 480 till 484.
He had no child and worried about it. Two grandsons of the Emperor Richu, Oke and Woke, were found by chance and Seinei adopted them and made the elder of them, Prince Oke, the crown prince.
His tomb was made in Kawachi province, which is today in the eastern Osaka prefecture.
