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MONACO - AUGUST 28: Prince Albert II of Monaco, Prince Jacques, Princess Charlene of Monaco and Princess Gabriella attend the annual traditional 'Pique Nique Monegasque' on August 28, 2015 in Monaco, Monaco. (Photo by PLS Pool/Getty Images)

MONACO - AUGUST 28:  Prince Albert II of Monaco,  Prince Jacques,  Princess Charlene of Monaco and Princess Gabriella attend the annual traditional 'Pique Nique Monegasque' on August 28, 2015 in Monaco, Monaco.  (Photo by PLS Pool/Getty Images)