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THE HAGUE, NETHERLANDS - OCTOBER 15: King Willem-Alexander of the Netherlands and Queen Maxima of the Netherlands with King Felipe of Spain and Queen Letizia of Spain at The Noordeinde Palace on October 15, 2014 in The Hague, Netherlands. (Photo by Mark Cuthbert/UK Press via Getty Images)

THE HAGUE, NETHERLANDS - OCTOBER 15:  King Willem-Alexander of the Netherlands and Queen Maxima of the Netherlands with King Felipe of Spain and Queen Letizia of Spain at The Noordeinde Palace on October 15, 2014 in The Hague, Netherlands.   (Photo by Mark Cuthbert/UK Press via Getty Images)