It is listed in the "Engishiki," and the name ''Ako Myojin'' also appears in the "Jinmyocho" which is read aloud at Omizutori (Water-Drawing-Ceremony) of Nigatsu-do (the Hall of the Second Month).
「延喜式」所載の神社で、二月堂のお水取りの際に読み上げられる神名帳にも「赤穂明神」とある。