GDANSK, POLAND - JULY 18: (NO UK SALES FOR 28 DAYS FROM CREATE DATE) Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge visit Stutthof, the former Nazi Germany Concentration Camp during day 2 of their Royal Tour of Poland and Germany on July 18, 2017 in Gdansk, Poland. (Photo by Pool/Samir Hussein/WireImage)
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WireImage Pool/Samir Hussein