Danish Crown Prince Frederik and Princess Mary pay respects after placing a wreath at the Mahatma Gandhi memorial at Raj Ghat in New Delhi, India, February 27, 2023. REUTERS/Altaf Hussain 

Danish Crown Prince Frederik and Princess Mary pay respects after placing a wreath at the Mahatma Gandhi memorial at Raj Ghat in New Delhi, India, February 27, 2023. REUTERS/Altaf Hussain 

Danish Crown Prince Frederik and Princess Mary scatter rose petals at the Mahatma Gandhi memorial at Raj Ghat in New Delhi, India, February 27, 2023. REUTERS/Altaf Hussain 

Danish Crown Prince Frederik and Princess Mary pay respects after placing a wreath at the Mahatma Gandhi memorial at Raj Ghat in New Delhi, India, February 27, 2023. REUTERS/Altaf Hussain 

Danish Crown Prince Frederik and Princess Mary arrive to pay respects at the Mahatma Gandhi memorial at Raj Ghat in New Delhi, India, February 27, 2023. REUTERS/Altaf Hussain 

Danish Crown Prince Frederik and Princess Mary scatter rose petals at the Mahatma Gandhi memorial at Raj Ghat in New Delhi, India, February 27, 2023. REUTERS/Altaf Hussain 

Danish Crown Prince Frederik and Princess Mary pay respects after placing a wreath at the Mahatma Gandhi memorial at Raj Ghat in New Delhi, India, February 27, 2023. REUTERS/Altaf Hussain 

Danish Crown Prince Frederik and Princess Mary pay respects after placing a wreath at the Mahatma Gandhi memorial at Raj Ghat in New Delhi, India, February 27, 2023. REUTERS/Altaf Hussain 

Danish Crown Prince Frederik and Princess Mary arrive to pay respects at the Mahatma Gandhi memorial at Raj Ghat in New Delhi, India, February 27, 2023. REUTERS/Altaf Hussain 

Danish Crown Prince Frederik and Princess Mary arrive to pay respects at the Mahatma Gandhi memorial at Rajghat in New Delhi, India, February 27, 2023. REUTERS/Altaf Hussain 

Danish Crown Prince Frederik and Princess Mary place a wreath at the Mahatma Gandhi memorial at Rajghat in New Delhi, India, February 27, 2023. REUTERS/Altaf Hussain 

Danish Prime Minister Mette Frederiksen speaks with U.S. President Joe Biden and French President Emmanuel Macron, as they arrive for a family photo shoot with NATO leaders and Spain's King Felipe and Queen Letizia, before a Royal Gala dinner at the Royal Palace of Madrid, during a NATO summit in Madrid, Spain June 28, 2022. REUTERS/Susana Vera 

Danish Prime Minister Mette Frederiksen speaks with U.S. President Joe Biden and French President Emmanuel Macron, as they arrive for a family photo shoot with NATO leaders and Spain's King Felipe and Queen Letizia, before a Royal Gala dinner at the Royal Palace of Madrid, during a NATO summit in Madrid, Spain June 28, 2022. REUTERS/Susana Vera 

A member of the Spanish Royal Guard reacts as U.S. President Joe Biden, French President Emmanuel Macron and Danish Prime Minister Mette Frederiksen enter the room before posing for a family photo with Spain's King Felipe and Queen Letizia, before a Royal Gala dinner during a NATO summit in Madrid, Spain June 28, 2022. REUTERS/Susana Vera 

A member of the Spanish Royal Guard reacts as U.S. President Joe Biden, French President Emmanuel Macron and Danish Prime Minister Mette Frederiksen enter the room before posing for a family photo with Spain's King Felipe and Queen Letizia, before a Royal Gala dinner during a NATO summit in Madrid, Spain June 28, 2022. REUTERS/Susana Vera 

Danish Prime Minister Mette Frederiksen speaks with U.S. President Joe Biden and French President Emmanuel Macron, before posing for a family photo with Spain's King Felipe and Queen Letizia before a Royal Gala dinner during a NATO summit in Madrid, Spain June 28, 2022. REUTERS/Susana Vera 

Denmark's Crown Prince Frederik visits RelyOn Nutec, during an official visit to the Netherlands, in Rotterdam, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Denmark's Crown Prince Frederik rides on a boat, during an official visit to the Netherlands, in Rotterdam, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Denmark's Crown Prince Frederik attends an event on the Prinses Amalia boat, during an official visit to the Netherlands, in Rotterdam, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Denmark's Crown Prince Frederik attends an event on the Prinses Amalia boat, during an official visit to the Netherlands, in Rotterdam, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Denmark's Crown Prince Frederik attends an event on the Prinses Amalia boat, during an official visit to the Netherlands, in Rotterdam, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Denmark's Crown Prince Frederik attends an event on the Prinses Amalia boat, during an official visit to the Netherlands, in Rotterdam, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Denmark's Crown Prince Frederik arrives for an event on the Prinses Amalia boat, during an official visit to the Netherlands, in Rotterdam, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Denmark's Crown Prince Frederik arrives for an event on the Prinses Amalia boat, during an official visit to the Netherlands, in Rotterdam, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Denmark's Crown Prince Frederik visits RelyOn Nutec, during an official visit to the Netherlands, in Rotterdam, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Denmark's Crown Prince Frederik visits RelyOn Nutec, during an official visit to the Netherlands, in Rotterdam, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Denmark's Crown Prince Frederik visits RelyOn Nutec, during an official visit to the Netherlands, in Rotterdam, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Denmark's Crown Prince Frederik visits RelyOn Nutec, during an official visit to the Netherlands, in Rotterdam, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Denmark's Crown Prince Frederik visits RelyOn Nutec, during an official visit to the Netherlands, in Rotterdam, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Denmark's Crown Prince Frederik visits RelyOn Nutec, during an official visit to the Netherlands, in Rotterdam, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Denmark's Crown Prince Frederik visits RelyOn Nutec, during an official visit to the Netherlands, in Rotterdam, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Denmark's Crown Prince Frederik visits RelyOn Nutec, during an official visit to the Netherlands, in Rotterdam, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Denmark's Crown Princess Mary visits the Children’s Hospital at Leiden University Medical Centre, during an official visit to the Netherlands, in Leiden, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Denmark's Crown Princess Mary visits the Children’s Hospital at Leiden University Medical Centre, during an official visit to the Netherlands, in Leiden, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Danish Crown Princess Mary visits the Children’s Hospital at Leiden University Medical Centre, during an official visit to the Netherlands, in Leiden, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Danish Crown Princess Mary visits the Children’s Hospital at Leiden University Medical Centre, during an official visit to the Netherlands, in Leiden, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Danish Crown Princess Mary visits the Children’s Hospital at Leiden University Medical Centre, during an official visit to the Netherlands, in Leiden, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Danish Crown Princess Mary visits the Children’s Hospital at Leiden University Medical Centre, during an official visit to the Netherlands, in Leiden, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Danish Crown Princess Mary visits the Children’s Hospital at Leiden University Medical Centre, during an official visit to the Netherlands, in Leiden, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Danish Crown Princess Mary visits the Children’s Hospital at Leiden University Medical Centre, during an official visit to the Netherlands, in Leiden, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Danish Crown Princess Mary visits the Children’s Hospital at Leiden University Medical Centre, during an official visit to the Netherlands, in Leiden, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Danish Crown Princess Mary visits the Children’s Hospital at Leiden University Medical Centre, during an official visit to the Netherlands, in Leiden, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Danish Crown Princess Mary visits the Children’s Hospital at Leiden University Medical Centre, during an official visit to the Netherlands, in Leiden, Netherlands, June 21, 2022. REUTERS/Piroschka Van De Wouw 

Denmark's Crown Princess Mary along with Danish Minister of Health and the Elderly Magnus Heunicke, visits the business stands at New Babylon Centre during an official visit, in The Hague, Netherlands, June 20, 2022. REUTERS/Piroschka van de Wouw 

Denmark's Crown Prince Frederik attends a meeting with Danish university students in The Netherlands during an official visit, in The Hague, Netherlands, June 20, 2022. REUTERS/Piroschka van de Wouw 

Denmark's Crown Princess Mary attends the Seminar on Smart Hospitals and Future Health Care, next to Danish Minister of Health and the Elderly Magnus Heunicke, during an official visit, in The Hague, Netherlands, June 20, 2022. REUTERS/Piroschka van de Wouw 

Denmark's Crown Princess Mary walks with Danish Minister of Health and the Elderly Magnus Heunicke for the Seminar on Smart Hospitals and Future Health Care during an official visit, in The Hague, Netherlands, June 20, 2022. REUTERS/Piroschka van de Wouw 

Denmark's Crown Princess Mary walks with Danish Minister of Health and the Elderly Magnus Heunicke for the Seminar on Smart Hospitals and Future Health Care during an official visit, in The Hague, Netherlands, June 20, 2022. REUTERS/Piroschka van de Wouw 

Birgitte, Duchess of Gloucester, a Danish member of the British royal family, attends the Chelsea Flower Show in London, Britain May 23, 2022. Picture taken May 23, 2022. James Whatling/Pool via REUTERS 

Birgitte, Duchess of Gloucester, a Danish member of the British royal family, attends the Chelsea Flower Show in London, Britain May 23, 2022. Picture taken May 23, 2022. James Whatling/Pool via REUTERS 

Britain's Catherine, Duchess of Cambridge smiles as she visits a forest kindergarten to learn about the Danish use of nature, which is widely recognized as having huge benefits on children’s mental health as part of her working visit with The Royal Foundation Centre for Early Childhood, in Copenhagen, Denmark, February 23, 2022. Ian Vogler/Pool via REUTERS 

Britain's Catherine, Duchess of Cambridge speaks as she visits a forest kindergarten to learn about the Danish use of nature, which is widely recognized as having huge benefits on children’s mental health as part of her working visit with The Royal Foundation Centre for Early Childhood, in Copenhagen, Denmark, February 23, 2022. Ian Vogler/Pool via REUTERS 

Britain's Catherine, Duchess of Cambridge smiles as she visits a forest kindergarten to learn about the Danish use of nature, which is widely recognized as having huge benefits on children’s mental health as part of her working visit with The Royal Foundation Centre for Early Childhood, in Copenhagen, Denmark, February 23, 2022. Ian Vogler/Pool via REUTERS 

Denmark's Queen Margrethe attends a reception in honor of the Federal President hosted by the Danish Royal family at the German Historical museum in Berlin, Germany, November 11, 2021. REUTERS/Christian Mang 

Denmark's Queen Margrethe attends a reception in honor of the Federal President hosted by the Danish Royal family at the German Historical museum in Berlin, Germany, November 11, 2021. REUTERS/Christian Mang 

Denmark's Queen Margrethe attends a reception in honor of the Federal President hosted by the Danish Royal family at the German Historical museum in Berlin, Germany, November 11, 2021. REUTERS/Christian Mang 

Denmark's Queen Margrethe attends a reception in honor of the Federal President hosted by the Danish Royal family at the German Historical museum in Berlin, Germany, November 11, 2021. REUTERS/Christian Mang 

Denmark's Queen Margrethe attends a reception in honor of the Federal President hosted by the Danish Royal family at the German Historical museum in Berlin, Germany, November 11, 2021. REUTERS/Christian Mang 

Denmark's Queen Margrethe attends a reception in honor of the Federal President hosted by the Danish Royal family at the German Historical museum in Berlin, Germany, November 11, 2021. REUTERS/Christian Mang 

Denmark's Queen Margrethe, German President Frank-Walter Steinmeier, his wife Elke Budenbender and Crown Prince Frederik arrive to attend a reception in honor of the Federal President hosted by the Danish Royal family at the German Historical museum in Berlin, Germany, November 11, 2021. REUTERS/Christian Mang