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MONACO - NOVEMBER 19: Princess Stephanie of Monaco, Princess Alexandra of Hanover, India Casiraghi and Pierre Casiraghi greet the crowd from the palace's balcony during the Monaco National Day Celebrations on November 19, 2016 in Monaco, Monaco. (Photo by Stephane Cardinale - Corbis/Corbis via Getty Images)

MONACO - NOVEMBER 19:  Princess Stephanie of Monaco, Princess Alexandra of Hanover, India Casiraghi and Pierre Casiraghi greet the crowd from the palace's balcony during the Monaco National Day Celebrations on November 19, 2016 in Monaco, Monaco.  (Photo by Stephane Cardinale - Corbis/Corbis via Getty Images)