Within the depth-psychology corpus, ‘Grandmother’ operates on at least three distinguishable registers that rarely collapse into one another. At the mythological-archetypal level, she figures as the primordial ancestress — Nokomis falling from the moon in Jung’s reading of Hiawatha, La Loba as the bone-collecting crone in Estés, Baba Yaga as the terrifying but generative Wild Grandmother in Slavic lore — each a personification of the collective unconscious’s deepest maternal stratum. At the clinical-developmental level, she surfaces in Bowlby’s attachment research as surrogate caregiver for bereaved children and, in community trauma work, as the primary custodial figure for children whose biological mothers are absent through addiction or incarceration. Jung’s seminar material introduces a third register: the ‘great-grandmother’ as an impersonal, mythological figure surpassing the personal anima in numinous weight — the ‘grandest mother,’ as he puts it, whose emergence in a man’s dream signals trouble of a depth that transcends personal psychology. Hillman, by contrast, secularises the figure into a social-evolutionary argument about grandparenting as civilizational shelter. Taken together, these voices reveal that the Grandmother carries both the darkest underworld energies and the most sustaining transgenerational wisdom the psyche can mobilise.