Emperor Kōnin
In 781 he was named heir-presumptive after his elder brother succeeded the abdicated Emperor Kōnin as the Emperor Kanmu. In 785, the administrator in charge of the new capital of Nagaoka-kyō, Fujiwara no Tanetsugu, was assassinated. Prince Sawara was implicated because of his opposition to the move of the capital, exiled to Awaji Province, but starved himself (although a mystery remains) and died on the way there.