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VATICAN, ITALY - APRIL 29: Prince Charles And Princess Diana Wearing Traditional Black Mantilla Veil Visiting Pope John-paul II At The Vatican During Their Tour Of Italy. (Photo by Tim Graham Photo Library via Getty Images)

VATICAN, ITALY - APRIL 29:  Prince Charles And Princess Diana Wearing Traditional Black Mantilla Veil Visiting Pope John-paul II At The Vatican During Their Tour Of Italy.  (Photo by Tim Graham Photo Library via Getty Images)