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British Royal Diana, Princess of Wales (1961-1997), wearing a grey tweed suit with a black collar, over a bow collar blouse, holding her son Prince William, before they board the Royal flight at Aberdeen Airport in Aberdeen, Scotland, 24th October 1983. (Photo by Tim Graham Photo Library via Getty Images)

British Royal Diana, Princess of Wales (1961-1997), wearing a grey tweed suit with a black collar, over a bow collar blouse, holding her son Prince William, before they board the Royal flight at Aberdeen Airport in Aberdeen, Scotland, 24th October 1983. (Photo by Tim Graham Photo Library via Getty Images)

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Princess Diana (1961 - 1997) with Prince Charles and their son Prince William leaving Aberdeen Airport after a holiday at Balmoral, Scotland, October 1983.

Princess Diana (1961 - 1997) with Prince Charles and their son Prince William leaving Aberdeen Airport after a holiday at Balmoral, Scotland, October 1983.

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Diana, Princess of Wales (1961 - 1997) arrives at Aberdeen airport in Scotland on the Royal Flight, with her sons Prince William and Prince Harry, 14th August 1989. They are spending the holidays in Balmoral. (Photo by Jayne Fincher/Princess Diana Archive/Getty Images)

Diana, Princess of Wales  (1961 - 1997) arrives at Aberdeen airport in Scotland on the Royal Flight, with her sons Prince William and Prince Harry, 14th August 1989.  They are spending the holidays in Balmoral.  (Photo by Jayne Fincher/Princess Diana Archive/Getty Images)