Watch: Denmark's Frederik proclaimed King by Danish PM

Denmark's King Frederik X waves from the balcony of Christiansborg Palace in Copenhagen, Denmark, Sunday, Jan. 14, 2024. Queen Margrethe II has become Denmark's first monarch to abdicate in nearly 900 years when she handed over the throne to her son, who has become King Frederik X. AP Photo/Martin Meissner

Denmark's King Frederik X ascended the throne on Sunday, succeeding his mother, Queen Margrethe II, who formally abdicated after 52 years as monarch, with big crowds gathered in the capital to witness history.