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    1. Celebrity
    2. Royals

    Queen Sonja and Queen Mathilde Dazzle in Historic Tiaras at State Banquet —And One Was Involved in a Daring '90s Jewel Heist

    The Norwegian and Belgian royals gathered for a glittering evening in Oslo, with one princess conspicuously missing from the event.

    Kristin Contino's avatar
    By Kristin Contino
    Published 25 March 2026 In News

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    Queen Sonja, King Harald, Queen Mathilde, Prince Philippe and Crown Prince Haakon at a state banquet
    (Image credit: Getty Images)
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    The Norwegian Royal Family is hosting an official state visit from King Philippe and Queen Mathilde of Belgium this week, and both queens wore tiaras with fascinating stories behind them at a state dinner on March 24.

    Queen Sonja of Norway dazzled in a pale pink pleated gown with a silver lace overlay, wearing a copy of a tiara that’s sadly disappeared. Queen Maud’s Pearl Tiara actually has ties to the British Royal Family, as it was given to Maud—the daughter of King Edward VII and Queen Alexandra—by her parents when she married into the Danish royal family in 1896. Maud and her husband, Prince Carl, were then made the King and Queen of Norway in 1905.

    After surviving World War II while being hidden in Windsor Castle, the tiara was given back to the Norwegian royals. But in a shocking twist of fate, Queen Maud’s tiara was stolen in a 1995 jewel heist while being cleaned at royal jewelers Garrard in London. The historic tiara was never found, and a copy of the diamond and pearl tiara was made instead, per the Royal Watcher blog.

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    Queen Sonja of Norway wearing a pink gown walking with King Philippe

    Queen Sonja of Norway, on the arm of Belgium's King Philippe, wears a replica of Queen Maud's Pearl Tiara at a state banquet on March 24.

    (Image credit: Getty Images)

    Queen Mathilde wearing a gold gown and diamond tiara

    Queen Mathilde of Belgium wears the Nine Provinces Tiara and a gold Armani Privé gown.

    (Image credit: Getty Images)

    Crown Princess Mette-Marit and Crown Prince Haakon posing with Queen Mathilde, King Philippe, King Harald and Queen Sonja

    Crown Princess Mette-Marit joined the Norwegian and Belgian royals earlier in the day, but skipped the banquet.

    (Image credit: Getty Images)

    As for Queen Mathilde, she also chose a piece with ties to a long-ago royal wedding. The Belgian queen wore The Nine Provinces Tiara, a stunning diamond diadem that dates back to Princess Astrid of Sweden’s 1926 wedding to the future King Leopold III of Belgium.

    The diamond tiara is a clever convertible piece that can be worn as a simple bandeau style, with its full diamond topper, or as a necklace, and Mathilde wore the tiara in its full glory with a shimmering gold Armani Privé gown.

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    King Harald and Queen Sonja were joined by their son and heir, Crown Prince Haakon, at the banquet, but his wife, Crown Princess Mette-Marit, stayed home amid her worsening health issues. The royal family had announced that Mette-Marit, who suffers from pulmonary fibrosis, wouldn’t be taking part in the state visit. But earlier Tuesday she made a surprise appearance to welcome Queen Mathilde and King Philippe, wearing a black skirt suit and a red pillbox hat that nodded to the Belgian flag.

    The crown princess gave a tearful interview about her friendship with Jeffrey Epstein to Norwegian broadcaster NRK last week, sharing that she took full “responsibility for not checking his background more carefully.”

    Marie Claire Newsletter

    Celebrity news, beauty, fashion advice, and fascinating features, delivered straight to your inbox!

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    Kristin Contino
    Kristin Contino
    Senior Royal and Celebrity Editor

    Kristin Contino is Marie Claire's Senior Royal and Celebrity editor. She's been covering royalty since 2018—including major moments such as the Platinum Jubilee, Queen Elizabeth II’s death and King Charles III's coronation—and places a particular focus on the British Royal Family's style and what it means.

    Prior to working at Marie Claire, she wrote about celebrity and royal fashion at Page Six Style and covered royalty from around the world as chief reporter at Royal Central. Kristin has provided expert commentary for outlets including the BBC, Sky News, US Weekly, the Today Show and many others.

    Kristin is also the published author of two novels, “The Legacy of Us” and “A House Full of Windsor.” She's passionate about travel, history, horses, and learning everything she can about her favorite city in the world, London.

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