The monument once fell into the river, although when it fell in fact was unknown, and was excavated from a trench in Hashi-dera Hojoin Temple some time between 1789 and 1801 during the Edo period.
いつしか河川に転落したが、江戸時代の寛政年間（1789年～1801年）橋寺放生院の溝のなかから掘り出された。