Queen Margrethe Of Denmark Celebrates Her 79th Birthday At Marselisborg Castle

AARHUS, DENMARK - APRIL 16: The Crown Prince Couple Frederik and Mary together with Prince Vincent (L) and Prince Christian appears at the veranda on Marselisborg Castle during changing of the guard on the occasion of the 79 years birthday of Queen Margrethe on April 16, 2019 in AArhus, Denmark. Mraselisborg Castle has been the Queens summer residence since 1967. There is a 13 hectare park to the residence which is open to the public when the Queen is not present. (Photo by Ole Jensen/Getty Images)