Background
He was the second son of Emperor Junna.
恒貞親王
He was the second son of Emperor Junna.
After the death of his older half-brother Prince Tsuneyo (恒世親王), Tsunesada became Emperor Junna"s successor. In 838, Tsunesada underwent the genbuku rite of passage in the shishin-den (紫宸殿) palace, at which he is said to have shown good manners, and cut a graceful figure as he expressed his gratitude to the Emperor. After this, Tsunesada and the retired Emperor Junna became anxious about being embroiled in a power struggle and repeatedly petitioned to resign, but Saga and Ninmyō dissuaded them each time.
However, after the Jōwa Incident immediately following Saga"s death in 842, Tsunesada was disinherited as crown prince.
When another succession dispute broke out in 884 after the abdication of Emperor Yōzei, Tsunesada was asked to take the throne, but he declined. According to the Nihon Sandai Jitsuroku, Tsunesada possessed an easy and elegant personality and a beautiful appearance.
Father: Emperor Junna
Mother: Princess Seishi, daughter of Emperor Saga
Wife: daughter of Fujiwara no Chikanari
Wife: daughter of Fujiwara no Koreo (藤原是雄).
According to the Nihon Sandai Jitsuroku, Tsunesada possessed an easy and elegant personality and a beautiful appearance.