According to "Nihonkoki," he was exiled for encouraging the rebellion to Imperial Prince Iyo, who had titles of Nakatsukasa-kyo (Minister of the Ministry of Central Affairs) and Dazai no sochi (Governor-General of the Dazai-fu offices) in 807.
『日本後紀』によると、大同(日本)2年（807年）に中務卿兼大宰帥伊予親王に謀反を勧めたため、流刑に処せられたという。