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LONDON, UNITED KINGDOM - JUNE 02: Diana, Princess Of Wales, With Marguerite Littman, Founder Of The Aids Crisis Trust, At A Private Viewing And Reception At Christies Of Dresses Worn By The Princess That Are For Auction In Aid Of The Aids Crisis Trust And The Royal Marsden Hospital Cancer Fund. (Photo by Tim Graham Photo Library via Getty Images)

LONDON, UNITED KINGDOM - JUNE 02:  Diana, Princess Of Wales, With Marguerite Littman, Founder Of The Aids Crisis Trust, At A Private Viewing And Reception At Christies Of Dresses Worn By The Princess That Are For Auction In Aid Of The Aids Crisis Trust And The Royal Marsden Hospital Cancer Fund.  (Photo by Tim Graham Photo Library via Getty Images)