Retired Empress Koken repeatedly conflicted with Emperor Junnin, for example, she rejected to change the name of the era and resisted to give an honorary title to Imperial Prince Toneri (father of Emperor Junnin) which was eventually realized by the strong request from Empress Dowager Komyo.
孝謙上皇は代始改元を拒み、舎人親王（淳仁の父）への尊号献上にも抵抗する（最終的には光明皇太后の強い要請により実現）など淳仁天皇との軋轢を繰り返した。