Even as a youngster, Diana knew how to dress for cooler weather. Here, the adorable royal-to-be is seen sporting a hooded coat – and a pair of super-stylish argyle socks! (Photo by Central Press/Hulton Archive/Getty Images)
The princess was regal in a heavy winter cape worn over a glamorous red dress as she attended a concert in London in 1982. (Photo by David Levenson/Getty Images)
Diana accessorized her luxe cream sweater and matching pleated skirt with a red leather belt and boots for a December 1983 photo-op at Kensington Palace. She was joined by Prince Charles and son William, who was also adorably dressed for the season. (Photo by Anwar Hussein/Getty Images)
The royal looked impeccable in this white military-style Catherine Walker coat paired with gloves and a matching Graham Smith hat for an official military visit in 1987. (Photo by Jayne Fincher/Getty Images)
Diana kept warm in an alpaca coat designed by Caroline Charles teamed with a matching wool chapeau in December 1982. (Photo by Jayne Fincher/Getty Images)
Sporting a trendy graphic sweater, the princess expressed her fondness of polo during a family holiday in Scotland in 1986. (Photo by Georges DeKeerle/Getty Images)
Only Diana (here, with baby William in 1983), could transform a conservative grey coat into a must-have fashion statement. (Photo by Anwar Hussein/Getty Images)
For a visit to St Michael’s church in 1986, Diana wrapped herself in an oversized, double-breasted coat by Caroline Charles paired with a trendy black muff. (Photo by David Levenson/Getty Images)
The princess layered an orange cardigan over a white turtleneck for a sleigh ride with her sons, William and Harry, while on a family holiday in Austria. (Photo by Tim Graham/Getty Images)
Although she loved bright colours, the princess also valued the versatility of neutral outerwear – like this beige, belted wool coat. (Photo by Anwar Hussein/Getty Images)
The sporty royal accessorized her Head ski jacket with a stylish braided headband during a skiing trip in Switzerland in 1986. (Photo by Tim Graham/Getty Images
After a Christmas service in 1981, Diana was seen chatting with Prince Edward while sporting a long blue coat with green trim and a matching pillbox hat.
She was impossibly glamorous in a monochromatic coat with black fur trim paired with a matching beret during a shopping trip in Germany in 1987. (Photo by Georges DeKeerle/Getty Images)
Diana had never looked so chic as she did on Christmas Day in 1989, when she donned this vibrant purple suit with striped detailing and a wide-brimmed, feathered hat to match. (Photo by Anwar Hussein/Getty Images)
In 1988, she kept warm while on an official visit to France in a timeless red tartan coat worn over a knit sweater. (Photo by Georges DeKeerle/Getty Images)