Golden Wedding Anniversary of Konstantin II and Annemarie of Greece [Getty Images]

ATHENS, GREECE - SEPTEMBER 18: Alexander, Crown Prince of Yugoslavia and Katherine, Crown Princess of Yugoslavia arrives for a private dinner organized by former King Constantine II of Greece and former Queen Anne-Marie to celebrate their Golden wedding anniversary at the Yacht Club of Greece in Piraeus, Greece, 18 September 2014. (Photo by Milos Bicanski/WireImage)

WireImage Milos Bicanski