After Emperor Godaigo was dethroned due to his attempt to overthrow the Kamakura bakufu (the Genko Incident) in 1331, Emperor Kogon of Jimyoin-to (imperial lineage from Emperor Gofukakusa to Emperor Gokomatsu) was enthroned.
元徳3年（元弘元年/1331年）に、後醍醐天皇が鎌倉幕府倒幕を企てて廃位される（元弘の変）と、持明院統の光厳天皇が即位する。