Queen Margrethe II of Denmark abdicated the throne in 2024 Hulton Archive/Getty Images Read More From the surprise abdication to a balcony kiss: how King Frederik of Denmark became king After the surprise abdication of his mother, Queen Margrethe II, King Frederik X was crowned in Copenhagen two years ago today On this day in 2024, Queen Margrethe II of Denmark abdicated the throne in favour of her son, the now King Frederik X of Denmark.