In addition, although the Fujiwara clans had all agreed on the enthronement of the Prince Shirakabe, there was a confrontation from an early stage regarding the next emperor, between the Northern House of the Fujiwara clan including FUJIWARA no Nagate who recommended Prince Osabe among children of Prince Shirakabe, and the Ceremonial House of the Fujiwara clan including FUJIWARA no Momokawa who recommended Emperor Kanmu (later Emperor Kanmu); also the dethronement of the Imperial Prince Osabe took place right after the political power shifted from the Northern House to the Ceremonial House.
また、白壁王の擁立については藤原氏一族は一致していたものの、その次の天皇については早い段階で白壁王の子供のうち、他戸王を推す藤原永手ら藤原北家と桓武天皇（後の桓武天皇）を推す藤原百川ら藤原式家との間で意見の対立があり、他戸皇太子の廃位も政権の主体が北家から式家に移った直後に発生している。