The Barbeque Dress, 1983
As the first authentic dress on display in the exhibit, this traditional Klondike-era outfit was designed by Linda Maddock and was worn on the official tour of Canada in 1983. The light-pink look came replete with bows, delicate lace tiers, gathered silk, and a matching fascinator.
It was originally worn by actress Francesca Annis, who played Lillie Langtry in the 1978 TV miniseries "Lillie." Like Camilla Parker-Bowles, who had a well-documented affair with Charles while he was married to Diana, Lillie's great-grandmother was the mistress of Charles's great-great grandfather King Edward VII.
Diana found the connection to be humourous and wore the dress as a subtle nod to the situation.
Image Source: Getty / David Levenson