It appears that folk belief in some cases may be inclined to regard the Saragossa image as miraculous, sculptured by the angels as they transported Mary from Jerusalem to Saragossa (Zaragoza); this mystical tradition goes back to María de Ágreda (d. 1665), herself the object of frequent "mystical bilocation" (i.e. she reported that she was often "transported by the aid of the angels" ), who gave an account to this effect in her "Mystical City of God"; however, unlike the tradition of the Marian apparition itself, the miraculous origin of the image is not part of the tradition recognized by the Holy See as canonical.