The family of Denmark's newly proclaimed King Frederik X wave on the balcony of Christiansborg Palace in Copenhagen, Denmark, Jan. 14, 2024. Denmark's Crown Prince Frederik was formally proclaimed king by the country's prime minister Mette Frederiksen on Sunday. (Xinhua/Lin Jing)

Denmark's newly proclaimed King Frederik X delivers a speech on the balcony of Christiansborg Palace in Copenhagen, Denmark, Jan. 14, 2024. Denmark's Crown Prince Frederik was formally proclaimed king by the country's prime minister Mette Frederiksen on Sunday. (Xinhua/Lin Jing)

Denmark's newly proclaimed King Frederik X waves on the balcony of Christiansborg Palace in Copenhagen, Denmark, Jan. 14, 2024. Denmark's Crown Prince Frederik was formally proclaimed king by the country's prime minister Mette Frederiksen on Sunday. (Xinhua/Lin Jing)

Denmark's newly proclaimed King Frederik X(L) and Queen Mary wave on the balcony of Christiansborg Palace in Copenhagen, Denmark, Jan. 14, 2024. Denmark's Crown Prince Frederik was formally proclaimed king by the country's prime minister Mette Frederiksen on Sunday. (Xinhua/Lin Jing)

Denmark's Prime Minister Mette Frederiksen (R) proclaims the accession of the throne from Queen Margrethe to King Frederik X from the balcony at Christiansborg Palace Square in Copenhagen, Denmark, Jan. 14, 2024. Denmark's Crown Prince Frederik was formally proclaimed king by the country's prime minister Mette Frederiksen on Sunday. (Xinhua/Lin Jing)

Denmark's newly proclaimed King Frederik X(L) kisses Queen Mary on the balcony of Christiansborg Palace in Copenhagen, Denmark, Jan. 14, 2024. Denmark's Crown Prince Frederik was formally proclaimed king by the country's prime minister Mette Frederiksen on Sunday. (Xinhua/Lin Jing)