In 897, Emperor Uda abdicated the throne to Crown Prince Atsugimi (Emperor Daigo), and became a priest in Ninna-ji Temple which he built himself and called himself Cloistered Emperor two years later, but there is an assumption that he in fact managed political affairs in place of the oft-ailing Emperor Daigo.
897年（寛平9年）、宇多天皇は皇太子敦仁親王（醍醐天皇）に譲位し、その2年後に自ら造立した仁和寺で出家し法皇と称したが、病気がちの醍醐天皇に代わって、実際の政務を執っていたいう説もある。