Although the Prince Shioyaki was executed since he was supported to become a fake emperor in the FUJIWARA no Nakamaro's war in 764, Kawatsugu and his mother, the Imperial Princess Fuwa were not punished.
天平宝字8年（764年）塩焼王は藤原仲麻呂の乱で偽帝に擁され処刑されたが、母の不破内親王と川継は罰されなかった。