Reportedly, it is because "Iyayotsugi," which was a historical tale written by FUJIWARA no Takanobu (a son of Jakucho before Jakucho became a priest) and does not exist any more, treated the period in question. |
藤原隆信(寂超在俗の子)の著である歴史物語『弥世継』(いやよつぎ、現存しない)がその時代を扱っていたためとされる。 |