In his final years he aimed to undertake political reform and build a temple (by imperial order) near Uda-in, where he had spent his time during princehood; however, it didn't come true, and it was succeeded to the next Emperor, Uda, to rule 'the peaceful era of Kampyo' and build Ninna-ji Temple.
晩年は政治改革と親王時代の住居であったとされる宇多院の近くに勅願寺創建を計画するも実現を見ぬままに終わり、後を継いだ宇多天皇の「寛平の治」及び仁和寺創建に継承されることになる。