Although forgotten in history for a while, the name of Arima no miko began appearing in some historical sources again and Iwashiro became an Utamakura (names of famous places usually associated with poetry) when the Manyoshu was re-evaluated and appreciated in the latter half of Heian period.
以降、歴史から忘れさられた存在となるが、平安後期における万葉復古の兆しとともに、いくばくか史料に散見されるようになり、磐代も歌枕となる。