When Emperor Godaigo of the Daikakuji Imperial line's branch family was banished to Oki after he attempted to overthrow the Kamakura bakufu (Japanese feudal government headed by a shogun), (the Genko Disturbance) Emperor Kogon was enthroned from the Jimyoin Imperial line.
大覚寺統傍流の後醍醐天皇が鎌倉幕府打倒を企てて失敗して隠岐に流される（元弘の変）と、持明院統から光厳天皇が即位した。