AARHUS, DENMARK - APRIL 16: Queen Margrethe of Denmark, with Prince Henrik of Denmark, and the Queens Grandchildren, Celebrate Queen Margrethe of Denmark's 77th Birthday at Marselisborg Palace on April 16, 2017 in Aarhus, Denmark. (Photo by Julian Parker/UK Press via Getty Images)

AARHUS, DENMARK - APRIL 16:   Queen Margrethe of Denmark, with Prince Henrik of Denmark, and the Queens Grandchildren, Celebrate Queen Margrethe of Denmark's 77th Birthday at Marselisborg Palace on April 16, 2017 in Aarhus, Denmark. (Photo by Julian Parker/UK Press via Getty Images)