The
Fujiwara clan had influenced Japanese politics since its founder,
Nakatomi no Kamatari, assisted in a
coup d'état in 645, in which the
Soga clan was overthrown and shortly thereafter a reform program (
Taika Reform) was launched, aimed at reinforcing imperial authority. In the 730s, the imperial advisory body known as the Council of State (
Daijō-kan) was controlled by four sons of
Fujiwara no Fuhito known as the "Fujiwara Four":
Fujiwara no Muchimaro,
minister of the right since 729;
Fujiwara no Fusasaki, consultant since 729;
Fujiwara no Umakai and
Fujiwara no Maro who joined the council in 731. Together they held four out of ten positions of this important council which was placed directly under the emperor and in charge of all kinds of secular affairs. In addition, the Fujiwara were related with the emperor as both
Shōmu's mother and his consort
Empress Kōmyō, were daughters of
Fujiwara no Fuhito. While most victims were from the producer populace of western and central Japan, by 737, the epidemic reached the capital at
Heijō-kyō (
Nara) causing death and terror among the aristocracy. The following appointments brought about a shift in power towards nobles closely related to the emperor and away from non-imperial clans such as the Fujiwara. In 737
Prince Suzuka, brother of
Prince Nagaya, was appointed to Chancellor (
Daijō-daijin), the highest position of the Council of State. In the beginning of the following year,
Tachibana no Moroe, half-brother of
Empress Kōmyō, took the position of
minister of the right that had been held by Muchimaro before his death. The only Fujiwara in the council at the time was Muchimaro's son,
Fujiwara no Toyonari who had a relatively low rank. In addition, all the clans that had opposed the Fujiwara Four such as the
Ōtomo, the
Saeki or the
Agata Inukai were Moroe backers. Unlike under the Fujiwara Four, the Emperor was not opposed by a single strong faction anymore as members of this new council originated from various clans. Makibi who had brought several important Confucian texts to Japan would advise the Emperor on the latest continental developments in legal codes, warfare and music. He was promoted to a higher rank and became Imperial professor (
daigaku no suke) at court. In 736, 2nd month (March/April), the monk Genbō who had returned with more than 5000 Buddhist scrolls and commentaries was given a large plot of land, eight servants and a purple
kesa by the court. Several Fujiwara were exiled to posts in distant provinces. Fujiwara no Hirotsugu, the oldest son of Umakai and nephew of
Empress Kōmyō, was the leader of the
Shikike branch of the Fujiwara family. Hermann Bohner describes him as a "knight", very talented in warfare, dance, music, poetry and science, but also as daredevil who is looking for enemies to attack and for risks to take. However Shōmu confided in his most influential advisors and had Hirotsugu demoted from his position as governor of the central
Yamato Province, which he had assumed a year earlier, to remote
Kyushu where he became vice-governor of
Dazaifu in 738. ==Rebellion==