Kate (@Katiemidleton) on Twitter: Duchess of Cambridge in Tiaras (and the Other Royal Ladies who have worn them)-Cartier Halo Scroll Tiara-Duchess of Cambridge, Queen Mother, Princess Margaret, Princess Anne; Lotus Flower/Papyrus Tiara-Duchess, (then) Duchess of York, Princess Margaret, Viscountess Linley; (Cambridge) Lover's Knot Tiara-Duchess, Queen Mary, Queen Elizabeth, Princess of Wales
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