AARHUS, DENMARK - APRIL 8:   Princess Marie of Denmark, and Prince Joachim of Denmark with Prince Joachim's sons, Prince Felix and Prince Nikolai attend a Gala Night to mark the forthcoming 75th Birthday of Queen Margrethe II of Denmark at Aarhus Concert Hall on April 8, 2015 in Aarhus, Denmark. (Photo by Julian Parker/UK Press via Getty Images)