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COPENHAGEN, DENMARK - JANUARY 14: Danish King Frederik X and his wife Queen Mary of Denmark wave to the crowds after his proclamation by the Prime Minister, Mette Frederiksen on the balcony of Christiansborg Palace on January 14, 2024 in Copenhagen, Denmark. King Frederik X is succeeding Queen Margrethe II, who will be stepping down after reigning for 51 years. (Photo by Sean Gallup/Getty Images)

COPENHAGEN, DENMARK - JANUARY 14: Danish King Frederik X and his wife Queen Mary of Denmark wave to the crowds after his proclamation by the Prime Minister, Mette Frederiksen on the balcony of Christiansborg Palace on January 14, 2024 in Copenhagen, Denmark. King Frederik X is succeeding Queen Margrethe II, who will be stepping down after reigning for 51 years. (Photo by Sean Gallup/Getty Images)