Imperial Prince Koretaka, the first prince of the Emperor Montoku, lost the feud over the succession to the Imperial throne, leaving Heian-kyo (the ancient capital of Japan in current Kyoto) and living a secluded life in the mountains, moving from place to place.
文徳天皇第一皇子・惟喬親王は皇位争いに敗れ、平安京を去り、郊外の山中に隠棲・転々とした。