Moroe, who had already began serving as Giseikan (Legislature) (Kugyo) in the position of Sangi (councilor) in 731, ascended to Dainagon (major councilor) in 737, and Udaijin (Minister of the Right) in 738, and in 743 he finally reached Sadaijin (Minister of the Left) and dedicated himself to national politics as the head of Daijokan (Grand Council of State) during the eras of the Emperor Shomu and the Emperor Koken.
諸兄は既に天平3年から参議に就いて議政官（公卿）を勤めていたが、天平9年には大納言へのぼると、翌10年には右大臣へ、同15年には左大臣へ昇進し、聖武天皇・孝謙天皇両天皇の治世期に太政官首班として政治に当たった。