During the 2001 Met Gala, Lee Radziwill paid tribute to her sister, Jacqueline Kennedy, in a white Armani gown.
Queen Rania of Jordan arrived at the 2007 Met Gala carpet in a navy blue and black gown. The annual fashion congregation celebrated Paul Poiret, a French designer.
Princess Maria-Olympia of Greece donned a patterned Balmain mini dress with high boots, following the 2016 theme 'Manus x Machina: Fashion in an Age of Technology.'
The German royalty, Princess Elisabeth von Thurn und Taxis wore a Mary Katrantzou off-black shoulder, golden embroidered dress for the 2016 theme.
Princess Beatrice, the daughter of Sarah Ferguson and Prince Andrew, arrived in a purple Alberta Ferretti number at the Met Gala in 2018.
Andrea Casiraghi also arrived at the Met Gala in 2006. The philanthropist attended the Met Gala when the theme was 'Anglomania: Tradition and Transgression in British Fashion,' with his now-wife Tatiana Santo Domingo.
Princess Maria-Chantal of Greece married to the Greece royalty in 1995. In 2001, she wore a classique Valentino Garavani gown.
Everyone's jaw dropped when Princess Diana arrived at the 1996 Met Gala in a sultry, Dior slip dress with a matching silk robe.