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MONTE-CARLO, MONACO - JULY 25: In this handout provided by Le Palais Princier, Prince Albert II of Monaco and Princess Charlene of Monaco arrive at the dinner during the Monaco Red Cross Gala on July 25, 2015 in Monte-Carlo, Monaco. (Photo by Eric Mathon/Monte Carlo Societe des Bains de Mer/Le Palais Princier via Getty Images)

MONTE-CARLO, MONACO - JULY 25:  In this handout provided by Le Palais Princier, Prince Albert II of Monaco and Princess Charlene of Monaco arrive at the dinner during the Monaco Red Cross Gala on July 25, 2015 in Monte-Carlo, Monaco.  (Photo by Eric Mathon/Monte Carlo Societe des Bains de Mer/Le Palais Princier via Getty Images)