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Diana, Princess of Wales (1961 - 1997) and Prince Charles dancing at a gala dinner and dance at the Wentworth Hotel in Sydney, Australia, March 1983. Diana is wearing a blue gown by Bruce Oldfield. (Photo by Jayne Fincher/Princess Diana Archive/Getty Images)

Diana, Princess of Wales (1961 - 1997) and Prince Charles dancing at a gala dinner and dance at the Wentworth Hotel in Sydney, Australia, March 1983. Diana is wearing a blue gown by Bruce Oldfield. (Photo by Jayne Fincher/Princess Diana Archive/Getty Images)