Belgian King Albert, Queen Paola, Prince Laurent, Princess Claire, Princess Astrid and Prince Lorenz, together with Prime Minister Alexander De Croo and Belgian lawmakers, attend a ceremony in honour of King's Day at the Belgian Parliament in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian Queen Paola touches the arm of her husband, King Albert, as they attend a ceremony at the Belgian Parliament in honour of King's Day in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian Queen Paola touches the arm of her husband, King Albert, as they attend a ceremony at the Belgian Parliament in honour of King's Day in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian King Albert and Queen Paola talk at the Belgian Parliament during celebrations in honour of King's Day in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian King Albert and Queen Paola pose for pictures at the Belgian Parliament during celebrations in honour of King's Day in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian King Albert and Queen Paola pose for pictures at the Belgian Parliament during celebrations in honour of King's Day in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian King Albert, Queen Paola, Prince Laurent, Princess Claire, Princess Astrid and Prince Lorenz pose for pictures with Prime Minister Alexander De Croo and members of Belgian government, during a ceremony at Belgian Parliament in honour of King's Day in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian King Albert and Queen Paola pose for pictures at the Belgian Parliament during celebrations in honour of King's Day in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian King Albert and Queen Paola leave after attending a 'Te Deum' Mass in honour of King's Day at St Michael and St Gudula Cathedral in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian King Albert and Queen Paola leave after attending a 'Te Deum' Mass in honour of King's Day at St Michael and St Gudula Cathedral in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian King Albert and Queen Paola leave after attending a 'Te Deum' Mass in honour of King's Day at St Michael and St Gudula Cathedral in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian King Albert and Queen Paola leave after attending a 'Te Deum' Mass in honour of King's Day at St Michael and St Gudula Cathedral in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian King Albert and Queen Paola attend a 'Te Deum' Mass in honour of King's Day at St Michael and St Gudula Cathedral in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian King Albert and Queen Paola arrive to attend a 'Te Deum' Mass in honour of King's Day at St Michael and St Gudula Cathedral in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian Queen Paola arrives to attend a 'Te Deum' Mass in honour of King's Day at St Michael and St Gudula Cathedral in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian Queen Paola arrives to attend a 'Te Deum' Mass in honour of King's Day at St Michael and St Gudula Cathedral in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian King Albert and Queen Paola attend a 'Te Deum' Mass in honour of King's Day at St Michael and St Gudula Cathedral in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian King Albert and Queen Paola arrive to attend a 'Te Deum' Mass in honour of King's Day at St Michael and St Gudula Cathedral in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian King Albert and Queen Paola arrive to attend a 'Te Deum' Mass in honour of King's Day at St Michael and St Gudula Cathedral in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian King Albert and Queen Paola arrive to attend a 'Te Deum' Mass in honour of King's Day at St Michael and St Gudula Cathedral in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian Queen Paola arrives to attend a 'Te Deum' Mass in honour of King's Day at St Michael and St Gudula Cathedral in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian Queen Paola arrives to attend a 'Te Deum' Mass in honour of King's Day at St Michael and St Gudula Cathedral in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian King Albert and Queen Paola arrive to attend a 'Te Deum' Mass in honour of King's Day at St Michael and St Gudula Cathedral in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian King Albert and Queen Paola arrive to attend a 'Te Deum' Mass in honour of King's Day at St Michael and St Gudula Cathedral in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian King Albert, Queen Paola, Prince Laurent, Princess Claire, Princess Astrid and Prince Lorenz attend a 'Te Deum' Mass in honour of King's Day at St Michael and St Gudula Cathedral in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Belgian King Albert, Queen Paola, Prince Laurent, Princess Claire, Princess Astrid and Prince Lorenz attend a 'Te Deum' Mass in honour of King's Day at St Michael and St Gudula Cathedral in Brussels, Belgium November 15, 2022. REUTERS/Yves Herman 

Queen Paola and King Albert II of Belgium arrive at the religious wedding service of Princess Maria Laura of Belgium and William Isvy at the Cathedral of St. Michael and St. Gudula in Brussels, Belgium, September 10, 2022. REUTERS/Johanna Geron 

Queen Paola and King Albert II of Belgium arrive at the religious wedding service of Princess Maria Laura of Belgium and William Isvy at the Cathedral of St. Michael and St. Gudula in Brussels, Belgium, September 10, 2022. REUTERS/Johanna Geron 

Britain's Queen Elizabeth greets Switzerland's President Ignazio Cassis and his wife Paola Cassis during an audience at Windsor Castle, Britain April 28, 2022. Dominic Lipinski/Pool via REUTERS 

Britain's Queen Elizabeth greets Switzerland's President Ignazio Cassis and his wife Paola Cassis during an audience at Windsor Castle, Britain April 28, 2022. Dominic Lipinski/Pool via REUTERS 

Britain's Queen Elizabeth poses for a photo with Switzerland's President Ignazio Cassis and his wife Paola Cassis during an audience at Windsor Castle, Britain April 28, 2022. Dominic Lipinski/Pool via REUTERS 

Belgium's King Philippe, Queen Mathilde, former King Albert II and Queen Paola attend the closing concert of the Queen Elisabeth Music Competition 2021 in Brussels, Belgium June 9, 2021.REUTERS/Johanna Geron/Pool 

Queen Mathilde, former Queen Paola and King Albert II attend the closing concert of the Queen Elisabeth Music Competition 2021 in Brussels, Belgium June 9, 2021.REUTERS/Johanna Geron/Pool 

Belgium's King Philippe, Queen Mathilde, former King Albert II and Queen Paola attend the closing concert of the Queen Elisabeth Music Competition 2021 in Brussels, Belgium June 9, 2021.REUTERS/Johanna Geron/Pool 

Belgium's King Philippe, Queen Mathilde, former King Albert II and Queen Paola attend the closing concert of the Queen Elisabeth Music Competition 2021 in Brussels, Belgium June 9, 2021.REUTERS/Johanna Geron/Pool 

Belgian Queen Paola is seen at a COVID-19 vaccination center in Brussels, Belgium March 18, 2021. Olivier Matthys/Pool via REUTERS 

Belgian Queen Paola arrives at a vaccination center before receiving a dose of COVID-19 vaccine in Brussels, Belgium March 18, 2021. Olivier Matthys/Pool via REUTERS 

Belgian Queen Paola arrives at a vaccination center before receiving a dose of COVID-19 vaccine in Brussels, Belgium March 18, 2021. Olivier Matthys/Pool via REUTERS 

Belgian Queen Paola arrives at a vaccination center before receiving a dose of COVID-19 vaccine in Brussels, Belgium March 18, 2021. Olivier Matthys/Pool via REUTERS 

Belgian Queen Paola looks on at a COVID-19 vaccination center in Brussels, Belgium March 18, 2021. Olivier Matthys/Pool via REUTERS 

Belgian King Albert II and Queen Paola sit at a vaccination centre before receiving a COVID-19 vaccine in Brussels, Belgium March 18, 2021. Olivier Matthys/Pool via REUTERS 

Belgian King Albert II and Queen Paola sit at a vaccination centre before receiving a COVID-19 vaccine in Brussels, Belgium March 18, 2021. Olivier Matthys/Pool via REUTERS 

Belgian King Albert II and Queen Paola wait after receiving a dose of COVID-19 vaccine at a vaccination centre in Brussels, Belgium March 18, 2021. Olivier Matthys/Pool via REUTERS 

Belgian King Albert II and Queen Paola wait after receiving a dose of COVID-19 vaccine at a vaccination centre in Brussels, Belgium March 18, 2021. Olivier Matthys/Pool via REUTERS 

Belgian King Albert II and Queen Paola wait after receiving a dose of COVID-19 vaccine at a vaccination centre in Brussels, Belgium March 18, 2021. Olivier Matthys/Pool via REUTERS 

Belgian King Albert II and Queen Paola wait after receiving a dose of COVID-19 vaccine at a vaccination centre in Brussels, Belgium March 18, 2021. Olivier Matthys/Pool via REUTERS 

Belgian Queen Paola waits after receiving a dose of COVID-19 vaccine at a vaccination centre in Brussels, Belgium March 18, 2021. Olivier Matthys/Pool via REUTERS 

Belgian King Albert II and Queen Paola wait after receiving a dose of COVID-19 vaccine at a vaccination centre in Brussels, Belgium March 18, 2021. Olivier Matthys/Pool via REUTERS 

Belgian Queen Paola receives a dose of COVID-19 vaccine at a vaccination centre in Brussels, Belgium March 18, 2021. Olivier Matthys/Pool via REUTERS 

Belgian Queen Paola receives a dose of COVID-19 vaccine at a vaccination centre in Brussels, Belgium March 18, 2021. Olivier Matthys/Pool via REUTERS 

Belgian Queen Paola and King Albert pay tribute to the deceased members of the royal family at the Royal Crypt in Notre-Dame de Laeken church in Brussels, Belgium February 17, 2021. Danny Gys/Pool via REUTERS 

Belgian Queen Paola and King Albert pay tribute to the deceased members of the royal family at the Royal Crypt in Notre-Dame de Laeken church in Brussels, Belgium February 17, 2021. Danny Gys/Pool via REUTERS 

Belgian Queen Paola and King Albert pay tribute to the deceased members of the royal family at the Royal Crypt in Notre-Dame de Laeken church in Brussels, Belgium February 17, 2021. Danny Gys/Pool via REUTERS 

Belgian Queen Paola and King Albert pay tribute to the deceased members of the royal family at the Royal Crypt in Notre-Dame de Laeken church in Brussels, Belgium February 17, 2021. Danny Gys/Pool via REUTERS 

Belgian Queen Paola and King Albert pay tribute to the deceased members of the royal family at the Royal Crypt in Notre-Dame de Laeken church in Brussels, Belgium February 17, 2021. Danny Gys/Pool via REUTERS 

King Albert of Belgium and Queen Paola visit the 'Tombeau du geant', in Botassart near Bouillon, Belgium, June 28, 2020. Julien Warnand/Pool 

King Albert of Belgium and Queen Paola visit the 'Tombeau du geant', in Botassart near Bouillon, Belgium, June 28, 2020. Julien Warnand/Pool 

King Albert of Belgium and Queen Paola visit the 'Tombeau du geant', in Botassart near Bouillon, Belgium, June 28, 2020. Julien Warnand/Pool 

Prince Gabriel, Crown Princess Elisabeth, Queen Mathilde of Belgium, Princess Eleonore, Prince Emmanuel, Queen Paola, King Albert and King Philippe of Belgium visit the 'Tombeau du geant', in Botassart near Bouillon, Belgium, June 28, 2020. Julien Warnand/Pool 

Queen Mathilde of Belgium, King Albert, Queen Paola and King Philippe of Belgium visit the 'Tombeau du geant', in Botassart near Bouillon, Belgium, June 28, 2020. Julien Warnand/Pool