However, Shirakabe no Okimi married Emperor Shomu's daughter Imperial Princess Inoe in 744, and was backed to succeed the imperial throne, becoming Emperor Kojin in 770 at the age of 62 (he reigned from 770 to 781).
だが白壁王は744年に聖武天皇皇女・井上内親王を妃とし、770年に擁立されて62歳で光仁天皇（在位：770年-781年）となった。