THE HAGUE, NETHERLANDS - APRIL 29: Queen Letizia of Spain leaves their hotel to attend the private birthday party of King Willem-Alexander in the Royal Stables on April 29, 2017 in The Hague, Netherlands. (Photo by Patrick van Katwijk/Getty Images)
THE HAGUE, NETHERLANDS - APRIL 29: Queen Letizia of Spain leaves their hotel to attend the private birthday party of King Willem-Alexander in the Royal Stables on April 29, 2017 in The Hague, Netherlands. (Photo by Patrick van Katwijk/Getty Images)