COPENHAGEN, DENMARK - APRIL 16:  Queen Margrethe II of Denmark (C) is joined by Frederik, Crown Prince of Denmark, Princess Isabella of Denmark, Crown Princess Mary of Denmark, Prince Vincent of Denmark, Prince Christian of Denmark, Prince Nikolai of Denmark, Prince Felix of Denmark, Prince Henrik of Denmark, Princess Athena of Denmark held by her father Prince Joachim of Denmark and Princess Josephine of Denmark on the balcony during her 75th birthday at Amalienborg Palace on April 16, 2015 in Copenhagen, Denmark. (Photo by Julian Parker/UK Press via Getty Images)