After taking the throne, King Frederik X and Queen Mary returned to their royal residence in Amalienborg in the Golden Wedding Anniversary Coach.
This comes after the formal abdication of Queen Margrethe II.
Danish Prime Minister Mette Frederiksen proclaimed Frederik the new King of Denmark.
The new King and Queen shared a surprise kiss on the balcony of Christiansborg Palace in their first historic appearance as monarchs.
The Golden Coach was built over nine months in 1892 as a gift for King Christian and Queen Louise to mark their golden wedding.