Because the children of four brothers were young, TACHIBANA no Moroe (Prince Kazuraki), who was a maternal half-brother of Empress Komyo (a daughter of Fuhito) and descended to subject status, was responsible for the government as Udaijin (minister of the right).
その後四兄弟の子が若かったため、政権は光明皇后（不比等の娘）の異父兄弟で臣籍降下した橘諸兄（葛城王）が右大臣として担うことになった。