Celebrations For King Carl Gustav & Queen Silvia'S 25Th Wedding Anniversary [Getty Images]

King Harald, Queen Sonja, Crown Prince Haakon, Crown Princess Mette-Marit & Princess Martha Louise Of Norway Attend A Performance At Gripsholm Castle During The Celebrations For King Carl Gustav & Queen Silvia Of Sweden'S 25Th Wedding Anniversary. . (Photo by Antony Jones/Julian Parker/UK Press via Getty Images)

UK Press Antony Jones/Julian Parker