坂上田村麻呂
In the autumn of 810, amid the deepening rivalry between the two courts, Heizei issued an order to abandon Heian-kyō and move the capital back to Heijō-kyō. This came as an unexpected move to Saga, who played along for the moment by appointing Sakanoue no Tamuramaro, Fujiwara no Fuyutsugu, and in charge of construction there. By sending these trusted attendants to Heizei's base of operations, he may have hoped to check his rival's power. The incident is said to have shaken him greatly.