Queen Maxima and King Willem-Alexander of The Netherlands Visit Denmark [Getty Images]

COPENHAGEN, DENMARK - MARCH 18: Crown Princess Mary of Denmark arrives at The Black Diamond in Copenhagen, where King Willem-Alexander, and Queen Maxima of the Netherlands host a return arrangement, during their State visit to Denmark, on March 18, 2015 in Copenhagen, Denmark. (Photo by Julian Parker/UK Press via Getty Images)

UK Press Julian Parker