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LONDON, ENGLAND - JANUARY 27: Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall take part in a candle lighting ceremony with Holocaust survivors on stage as they attend a Holocaust Memorial Day Ceremony at Central Hall Westminster on January 27, 2015 in London, England. (Photo by Chris Jackson/WPA Pool/Getty Images)

LONDON, ENGLAND - JANUARY 27:  Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall take part in a candle lighting ceremony with Holocaust survivors on stage as they attend a Holocaust Memorial Day Ceremony at Central Hall Westminster on January 27, 2015 in London, England.  (Photo by Chris Jackson/WPA Pool/Getty Images)