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Getty ImagesThe Princess at the Polo Club wore a "British Lung Foundation" sweatshirt in '88.
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Getty ImagesAn ugly sweater moment at Craigowan Lodge on the Balmoral Estate in Scotland, before the engaged couple's wedding in 1981.
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Getty ImagesPrincess Diana shows her sporty side on a ski holiday in Klosters, Switzerland in February 1986.
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Getty ImagesPulling off pastel overalls couldn't have been easy in the '80s, but here she is at Windsor Great Park in 1981.
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Getty ImagesBed sheet florals in 1986.
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Getty ImagesLeaving Chelsea Harbour Club in London in a Virgin Atlantic sweatshirt, 1995.
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Getty ImagesThe royal family in the gardens of the Highbrow House in July 14, 1986.
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Getty ImagesPerhaps the source of inspiration for Demna Gvsalia's Spring 2017 palette. The Princess exits the Royal Yacht Britannia in Aberdeen in 1985.
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Getty ImagesAnother polo match, another wallpaper floral in 1985.
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Getty ImagesKhaki pants in check in Angola, 1997.
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Getty ImagesGiving us Fendi Fall 2017 vibes with red accessories back in 1983.
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Getty ImagesAn all leopard look while on holiday in Necker Island in the Caribbean, 1990.
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Getty ImagesA precursor to the Vetements tracksuit moment, while in West Berlin in 1989.
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Getty ImagesWhile on holiday in Austria in '94, she was head of her time in a puffy coat that could be Balenciaga Fall Winter '18.
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Getty ImagesBlending in with her surroundings at a Saudi Arabian picnic in 1986.
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Getty ImagesGracing us with another pastel overall look.
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Getty ImagesA sweater so ugly that it's cute.
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Getty ImagesDon't even try to test this woman's ugly sweater game. Leaving Aberdeen Airport with her Princes in 1986.
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Getty ImagesShe had a knack for "militant equestrian cool."
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Getty ImagesIt might have been this very graphic tee that earned her the title, "The People's Princess."
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