Christie's on Instagram: "A rediscovered belle Époque icon. Paul-César Helleu’s large-scale pastel of Élisabeth, comtesse Greffulhe, captures the elegance and glamour of the Belle Époque. A patron of the arts and sciences, Élisabeth inspired both Marcel Proust’s duchesse de Guermantes and Helleu’s celebrated work — a luminous portrait that bridges history and fiction. This portrait, an exceptionally large and personal work within the artist's oeuvre, will be offered alongside other related lots,