King Charles and Queen Camilla have shared a message of support for the newly-crowned King Frederik X and Australian-born Queen Mary.
The pair ascended to the throne following the former queen, Margrethe II's abdication, with Charles and Camilla sharing a public message for the couple on social media.
"My wife joins me in writing to convey our very best wishes on the day of your accession to the throne of the Kingdom of Denmark," Charles wrote. "I look forward to working with you on ensuring that the enduring bond between our countries, and our families, remains strong, and to working together with you on issues which matter so much for our countries and the wider world."
Charles also paid tribute to Margrethe, who was the longest-reigning female monarch after serving for 52 years.
"I pay tribute to the many years of service of your mother, Her Majesty Queen Margrethe II, and remember fondly the frequent visits between our countries, including our visit to Copenhagen and Elsinore in 2012," he added.
"I was delighted that Your Majesties were able to attend our coronation last year and I much look forward to future opportunities to celebrate the close connection which unites our countries and our families."
Norway's King Harald V also shared his "warmest congratulations", adding that he believed Frederik and Mary would bring Denmark into a "new era".
"With warmth, wisdom and dedication, Her Majesty Queen Margrethe has followed her country and her people through joys and sorrows," he wrote. "For more than 50 years she has been able to be a present monarch – with an infectious mood and vast knowledge. And with good support from his immediate family. The close friendship between our two families means a lot to all of us.
"I am convinced that you will fulfil your new roles excellently. My family and I hope and pray that you will have the strength and support you need in all your endeavours."
King Carl XVI Gustaf of Sweden also congratulated the pair, writing, "To you and Queen Mary, I would also like to express my and my family’s most heartfelt wishes for success. This day reminds us of the historical community, closeness and cordiality that binds our two countries and families.
"It is my hope that the already very close Danish-Swedish relations will deepen even more in the years ahead."
Frederik and Mary become King and Queen
On New Year's Eve, Margrethe announced her decision to step down after 52 years on the throne.
"I have decided that now is the right time," the former queen, 83, said. "The 14th of January 2024, 52 years after I followed my beloved father, I will step back as the Queen of Denmark. I leave the throne to my son the Crown Prince Frederik."
The ceremony was a quick one, with Frederik and Margrethe signing official documents, with the mother standing, giving her seat to her son, and saying, "God save the King," and leaving the room as a symbol of leaving the role.
After the ceremony took place, Frederik and Mary took to the balcony, with the new King telling the crowd he would be a unifying force for Danes.
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