Grand Duke Henri of Luxembourg listens during a news conference in Riga, Latvia March 13, 2023. REUTERS/Ints Kalnins 

Grand Duke Henri of Luxembourg listens during a news conference in Riga, Latvia March 13, 2023. REUTERS/Ints Kalnins 

Grand Duke Henri of Luxembourg speaks during a news conference in Riga, Latvia March 13, 2023. REUTERS/Ints Kalnins 

Grand Duke Henri of Luxembourg speaks during a news conference in Riga, Latvia March 13, 2023. REUTERS/Ints Kalnins 

Grand Duke Henri of Luxembourg speaks during a news conference in Riga, Latvia March 13, 2023. REUTERS/Ints Kalnins 

Grand Duke Henri of Luxembourg speaks during a news conference in Riga, Latvia March 13, 2023. REUTERS/Ints Kalnins 

Grand Duke Henri of Luxembourg speaks during a news conference in Riga, Latvia March 13, 2023. REUTERS/Ints Kalnins 

Grand Duke Henri of Luxembourg speaks during a news conference in Riga, Latvia March 13, 2023. REUTERS/Ints Kalnins 

Grand Duke Henri of Luxembourg and Latvian President Egils Levits attend a news conference in Riga, Latvia March 13, 2023. REUTERS/Ints Kalnins 

Grand Duke Henri of Luxembourg arrives to a welcome ceremony in Riga, Latvia March 13, 2023. REUTERS/Ints Kalnins 

Latvian President Egils Levits shakes hands with Grand Duke Henri of Luxembourg during a welcome ceremony in Riga, Latvia March 13, 2023. REUTERS/Ints Kalnins 

Latvian President Egils Levits and Grand Duke Henri of Luxembourg attend a welcome ceremony in Riga, Latvia March 13, 2023. REUTERS/Ints Kalnins 

Latvian President Egils Levits and Grand Duke Henri of Luxembourg listen to national anthems during a welcome ceremony in Riga, Latvia March 13, 2023. REUTERS/Ints Kalnins 

Latvian President Egils Levits and Grand Duke Henri of Luxembourg attend a welcome ceremony in Riga, Latvia March 13, 2023. REUTERS/Ints Kalnins 

Latvian President Egils Levits and Grand Duke Henri of Luxembourg attend a welcome ceremony in Riga, Latvia March 13, 2023. REUTERS/Ints Kalnins 

Latvian President Egils Levits and Grand Duke Henri of Luxembourg attend a welcome ceremony in Riga, Latvia March 13, 2023. REUTERS/Ints Kalnins 

Grand Duke Henri of Luxembourg attends a welcome ceremony in Riga, Latvia, March 13, 2023. REUTERS/Ints Kalnins 

Grand-Duke Henri of Luxembourg and Grand-Duchess Maria Teresa of Luxembourg walk on the day of the funeral of former King of Greece Constantine II, in Athens, Greece, January 16, 2023. REUTERS/Louiza Vradi 

Grand-Duke Henri of Luxembourg and Grand-Duchess Maria Teresa of Luxembourg walk on the day of the funeral of former King of Greece Constantine II, in Athens, Greece, January 16, 2023. REUTERS/Louiza Vradi 

Grand-Duke Henri of Luxembourg and Queen Mathilde of Belgium attending the State Funeral of Queen Elizabeth II, held at Westminster Abbey, London. Picture date: Monday September 19, 2022. Gareth Fuller/Pool via REUTERS 

Grand-Duke Henri and Grand-Duchess Maria Teresa of Luxembourg attending the State Funeral of Queen Elizabeth II, held at Westminster Abbey, London. Picture date: Monday September 19, 2022. Gareth Fuller/Pool via REUTERS 

LONDON, ENGLAND - SEPTEMBER 19: Grand Duchess, Maria Teresa and Grand Duke, Henri of Luxembourg depart Westminster Abbey during the State Funeral of Queen Elizabeth II on September 19, 2022 in London, England. Elizabeth Alexandra Mary Windsor was born in Bruton Street, Mayfair, London on 21 April 1926. She married Prince Philip in 1947 and ascended the throne of the United Kingdom and Commonwealth on 6 February 1952 after the death of her Father, King George VI. Queen Elizabeth II died at Balmoral Castle in Scotland on September 8, 2022, and is succeeded by her eldest son, King Charles III. Gareth Cattermole/Pool via REUTERS 

Grand Duke of Luxembourg Henri and Grand Duchess Maria Teresa pay their respects to Britain's Queen Elizabeth, following her death, during her lying-in-state at Westminster Hall, in London, Britain, September 18, 2022. REUTERS/John Sibley/Pool 

Grand Duke of Luxembourg Henri and Grand Duchess Maria Teresa pay their respects to Britain's Queen Elizabeth, following her death, during her lying-in-state at Westminster Hall, in London, Britain, September 18, 2022. REUTERS/John Sibley/Pool 

Grand Duke of Luxembourg Henri and Grand Duchess Maria Teresa pay their respects to Britain's Queen Elizabeth, following her death, during her lying-in-state at Westminster Hall, in London, Britain, September 18, 2022. REUTERS/John Sibley/Pool 

Grand Duke of Luxembourg Henri and Grand Duchess Maria Teresa pay their respects to Britain's Queen Elizabeth, following her death, during her lying-in-state at Westminster Hall, in London, Britain, September 18, 2022. REUTERS/John Sibley/Pool 

Grand Duke of Luxembourg Henri and Grand Duchess Maria Teresa pay their respects to Britain's Queen Elizabeth, following her death, during her lying-in-state at Westminster Hall, in London, Britain, September 18, 2022. REUTERS/Sarah Meyssonnier/Pool 

Grand Duke of Luxembourg Henri and Grand Duchess Maria Teresa pay their respects to Britain's Queen Elizabeth, following her death, during her lying-in-state at Westminster Hall, in London, Britain, September 18, 2022. REUTERS/Sarah Meyssonnier/Pool 

King Philippe of Belgium, Swedish Prime Minister Stefan Lofven, King Felipe of Spain, Grand Duke of Luxembourg Henri, Crown Prince of Norway Hakoon pose with world leaders for a group photo during the Fifth World Holocaust Forum at the Yad Vashem Holocaust memorial museum in Jerusalem, January 23, 2020. Abir Sultan/Pool via REUTERS 

Belgium's Queen Mathilde, King Philippe and Luxembourg's Grand Duke Henri leave a commemoration ceremony for the 75th anniversary of the Battle of the Bulge at the Mardasson World War II memorial monument in Bastogne, Belgium, December 16, 2019. Francisco Seco/Pool via Reuters 

Belgium's Queen Mathilde, King Philippe and Luxembourg's Grand Duke Henri leave a commemoration ceremony for the 75th anniversary of the Battle of the Bulge at the Mardasson World War II memorial monument in Bastogne, Belgium, December 16, 2019. Francisco Seco/Pool via Reuters 

European Council President Charles Michel, Poland's President Andrzej Duda, Belgium's Prime Minister Sophie Wilmes, Luxembourg's Prime Minister Xavier Bettel, Germany's President Frank-Walter Steinmeier, U.S. Defense Secretary Mark Esper, U.S. House Speaker Nancy Pelosi, Belgium's King Philippe and Queen Mathilde, Luxembourg's Grand Duke Henri attend a commemoration ceremony for the 75th anniversary of the Battle of the Bulge at the Mardasson World War II memorial monument in Bastogne, Belgium December 16, 2019. REUTERS/Francois Lenoir 

European Council President Charles Michel, Poland's President Andrzej Duda, Belgium's Prime Minister Sophie Wilmes, Luxembourg's Prime Minister Xavier Bettel, Germany's President Frank-Walter Steinmeier, U.S. Defense Secretary Mark Esper, U.S. House Speaker Nancy Pelosi, Belgium's King Philippe and Queen Mathilde, Luxembourg's Grand Duke Henri attend a commemoration ceremony for the 75th anniversary of the Battle of the Bulge at the Mardasson World War II memorial monument in Bastogne, Belgium December 16, 2019. REUTERS/Francois Lenoir 

European Council President Charles Michel, Poland's President Andrzej Duda, Belgium's Prime Minister Sophie Wilmes, Luxembourg's Prime Minister Xavier Bettel, Germany's President Frank-Walter Steinmeier, U.S. Defense Secretary Mark Esper, U.S. House Speaker Nancy Pelosi, Belgium's King Philippe and Queen Mathilde, Luxembourg's Grand Duke Henri attend a commemoration ceremony for the 75th anniversary of the Battle of the Bulge at the Mardasson World War II memorial monument in Bastogne, Belgium December 16, 2019. REUTERS/Francois Lenoir 

European Council President Charles Michel, Poland's President Andrzej Duda, Germany's President Frank-Walter Steinmeier, U.S. Defense Secretary Mark Esper, Belgium's King Philippe and Luxembourg's Grand Duke Henri attend a wreath laying commemoration ceremony for the 75th anniversary of the Battle of the Bulge at the Mardasson World War II memorial monument in Bastogne, Belgium December 16, 2019. REUTERS/Francois Lenoir 

European Council President Charles Michel, Poland's President Andrzej Duda, Germany's President Frank-Walter Steinmeier, U.S. Defense Secretary Mark Esper, Belgium's King Philippe and Luxembourg's Grand Duke Henri attend a wreath laying commemoration ceremony for the 75th anniversary of the Battle of the Bulge at the Mardasson World War II memorial monument in Bastogne, Belgium December 16, 2019. REUTERS/Francois Lenoir 

European Council President Charles Michel, Poland's President Andrzej Duda, Germany's President Frank-Walter Steinmeier, U.S. Defense Secretary Mark Esper, Belgium's King Philippe and Luxembourg's Grand Duke Henri attend a wreath laying commemoration ceremony for the 75th anniversary of the Battle of the Bulge at the Mardasson World War II memorial monument in Bastogne, Belgium December 16, 2019. REUTERS/Francois Lenoir 

European Council President Charles Michel, Poland's President Andrzej Duda, Germany's President Frank-Walter Steinmeier, Belgium's King Philippe and Luxembourg's Grand Duke Henri attend a commemoration ceremony for the 75th anniversary of the Battle of the Bulge at the Mardasson World War II memorial monument in Bastogne, Belgium December 16, 2019. REUTERS/Francois Lenoir 

European Council President Charles Michel, Poland's President Andrzej Duda, Germany's President Frank-Walter Steinmeier, U.S. Defense Secretary Mark Esper, Belgium's King Philippe and Luxembourg's Grand Duke Henri attend a commemoration ceremony for the 75th anniversary of the Battle of the Bulge at the Mardasson World War II memorial monument in Bastogne, Belgium December 16, 2019. REUTERS/Francois Lenoir 

European Council President Charles Michel, Poland's President Andrzej Duda, Belgium's Prime Minister Sophie Wilmes, Luxembourg's Prime Minister Xavier Bettel, Germany's President Frank-Walter Steinmeier, U.S. Defense Secretary Mark Esper, U.S. House Speaker Nancy Pelosi, Belgium's King Philippe and Queen Mathilde, Luxembourg's Grand Duke Henri attend a commemoration ceremony for the 75th anniversary of the Battle of the Bulge at the Mardasson World War II memorial monument in Bastogne, Belgium December 16, 2019. REUTERS/Francois Lenoir 

European Council President Charles Michel, Poland's President Andrzej Duda, Belgium's Prime Minister Sophie Wilmes, Luxembourg's Prime Minister Xavier Bettel, Germany's President Frank-Walter Steinmeier, U.S. Defense Secretary Mark Esper, U.S. House Speaker Nancy Pelosi, Belgium's King Philippe and Queen Mathilde, Luxembourg's Grand Duke Henri attend a commemoration ceremony for the 75th anniversary of the Battle of the Bulge at the Mardasson World War II memorial monument in Bastogne, Belgium December 16, 2019. REUTERS/Francois Lenoir 

Germany's President Frank-Walter Steinmeier, Belgium's King Philippe and Luxembourg's Grand Duke Henri attend a commemoration ceremony for the 75th anniversary of the Battle of the Bulge at the Mardasson World War II memorial monument in Bastogne, Belgium December 16, 2019. REUTERS/Francois Lenoir 

Spain's acting Prime Minister Pedro Sanchez welcomes Grand Duke of Luxembourg Henri during the U.N. climate change conference (COP25) in Madrid, Spain, December 2, 2019. REUTERS/Susana Vera 

Grand Duke of Luxembourg Henri arrives to attend the U.N. climate change conference (COP25) in Madrid, Spain, December 2, 2019. REUTERS/Sergio Perez 

Grand Duke of Luxembourg Henri arrives to attend the U.N. climate change conference (COP25) in Madrid, Spain, December 2, 2019. REUTERS/Sergio Perez 

Grand Duke Henri of Luxembourg arrives at the Imperial Palace for the Court Banquets after the Ceremony of the Enthronement of Emperor Naruhito in Tokyo, Japan October 22, 2019. Pierre Emmanuel Deletree/Pool via REUTERS 

Grand Duke Henri of Luxembourg attends the wedding ceremony of Jean-Christophe Napoleon Bonaparte and Olympia von Arco-Zinneberg at the Saint-Louis des Invalides Cathedral in Paris, France, October 19, 2019. REUTERS/Benoit Tessier 

Grand Duke Henri of Luxembourg attends the wedding ceremony of Jean-Christophe Napoleon Bonaparte and Olympia von Arco-Zinneberg at the Saint-Louis des Invalides Cathedral in Paris, France, October 19, 2019. REUTERS/Benoit Tessier 

Henri, Grand Duke of Luxembourg chats at the reception at Grand Ducal Palace after the funeral of his father Grand Duke Jean in Luxembourg May 4, 2019. Sophie Margue/Pool via REUTERS 

Henri, Grand Duke of Luxembourg chats at the reception at Grand Ducal Palace after the funeral of his father Grand Duke Jean in Luxembourg May 4, 2019. Samuel Kirszenbaum/Pool via REUTERS 

Luxembourg Grand Duke Henri and Grand Duchess Maria Teresa attend the funeral ceremony of Luxembourg's Grand Duke Jean at the Notre-Dame Cathedral in Luxembourg, May 4, 2019. Sophie Margue/Pool via REUTERS 

Luxembourg Grand Duke Henri and Grand Duchess Maria Teresa attend the funeral ceremony of Luxembourg's Grand Duke Jean at the Notre-Dame Cathedral in Luxembourg, May 4, 2019. Sophie Margue/Pool via REUTERS 

Luxembourg's Grand Duke Henri and Grand Duchess Maria Teresa leave after attending the funeral ceremony of Luxembourg's Grand Duke Jean at the Notre-Dame Cathedral in Luxembourg, May 4, 2019. REUTERS/Francois Lenoir 

Luxembourg's Grand Duke Henri and Grand Duchess Maria Teresa leave after attending the funeral ceremony of Luxembourg's Grand Duke Jean at the Notre-Dame Cathedral in Luxembourg, May 4, 2019. REUTERS/Francois Lenoir 

Luxembourg's Grand Duke Henri and Grand Duchess Maria Teresa leave after attending the funeral ceremony of Luxembourg's Grand Duke Jean at the Notre-Dame Cathedral in Luxembourg, May 4, 2019. REUTERS/Francois Lenoir 

Luxembourg's Grand Duke Henri and Grand Duchess Maria Teresa leave after attending the funeral ceremony of Luxembourg's Grand Duke Jean at the Notre-Dame Cathedral in Luxembourg, May 4, 2019. REUTERS/Francois Lenoir 

Luxembourg's Grand Duke Henri and Grand Duchess Maria Teresa leave after attending the funeral ceremony of Luxembourg's Grand Duke Jean at the Notre-Dame Cathedral in Luxembourg, May 4, 2019. REUTERS/Francois Lenoir 

Luxembourg Grand Duke Henri and Prince Guillaume of Luxembourg with his wife Princess Stephanie attend the funeral ceremony of Luxembourg's Grand Duke Jean at the Notre-Dame Cathedral in Luxembourg, May 4, 2019. Sophie Margue/Pool via REUTERS 

Luxembourg Grand Duke Henri and Grand Duchess Maria Teresa attend the funeral ceremony of Luxembourg's Grand Duke Jean at the Notre-Dame Cathedral in Luxembourg, May 4, 2019. Sophie Margue/Pool via REUTERS 

Luxembourg Grand Duke Henri, Grand Duchess Maria Teresa and other members of the family follow the hearse of Luxembourg's Grand Duke Jean as they leave Notre-Dame Cathedral in Luxembourg, May 4, 2019. REUTERS/Francois Lenoir