Former Spanish King Juan Carlos, former Queen Sofia, Infanta Elena and Infanta Cristina walk on the day of the funeral of former King of Greece Constantine II, in Athens, Greece, January 16, 2023. REUTERS/Louiza Vradi 

Former Spanish King Juan Carlos, former Queen Sofia, Infanta Elena and Infanta Cristina walk on the day of the funeral of former King of Greece Constantine II, in Athens, Greece, January 16, 2023. REUTERS/Louiza Vradi 

Former Spanish King Juan Carlos, former Queen Sofia, Infanta Elena and Infanta Cristina walk on the day of the funeral of former King of Greece Constantine II, in Athens, Greece, January 16, 2023. REUTERS/Louiza Vradi 

Spain's former Queen Sofia, Infanta Elena and Infanta Cristina walk on the day of the funeral of former King of Greece Constantine II, in Athens, Greece, January 16, 2023. REUTERS/Louiza Vradi 

Former Spanish King Juan Carlos, former Queen Sofia, Infanta Elena, Infanta Cristina and Greece's former Princess Irene attend the funeral service of former King of Greece Constantine II in the Metropolitan Cathedral of Athens, Greece, January 16, 2023. REUTERS/Stoyan Nenov/Pool 

Spain's King Felipe VI, Queen Letizia and Infanta Sofia leave the military parade, while Prime Minister Pedro Sanchez stands, in Madrid, Spain, October 12, 2022. REUTERS/Juan Medina 

Spain's King Felipe VI, Queen Letizia and Infanta Sofia attend a military parade to mark the country's National Day, in Madrid, Spain, October 12, 2022. REUTERS/Juan Medina 

Spain's King Felive VI, Prime Minister Pedro Sanchez, Queen Letizia and Infanta Sofia attend a military parade to mark the country's National Day, in Madrid, Spain, October 12, 2022. REUTERS/Juan Medina 

Spain's King Felipe VI, Queen Letizia and Infanta Sofia leave the military parade, while Prime Minister Pedro Sanchez stands, in Madrid, Spain, October 12, 2022. REUTERS/Juan Medina 

Spain's King Felipe VI, Queen Letizia and Infanta Sofia leave the military parade, while Prime Minister Pedro Sanchez stands, in Madrid, Spain, October 12, 2022. REUTERS/Juan Medina 

Spain's King Felipe VI, Queen Letizia and Infanta Sofia attend a military parade to mark the country's National Day, in Madrid, Spain, October 12, 2022. REUTERS/Juan Medina 

Spain's King Felipe VI, Queen Letizia, Infanta Sofia and Prime Minister Pedro Sanchez attend a military parade to mark the country's National Day, in Madrid, Spain, October 12, 2022. REUTERS/Juan Medina 

Spanish Prime Minister Pedro Sanchez, Queen Letizia and Infanta Sofia attend a military parade to mark the country's National Day, in Madrid, Spain, October 12, 2022. REUTERS/Juan Medina 

Soccer Football - Women's Euro 2022 - Group B - Denmark v Spain - Brentford Community Stadium, London, Britain - July 16, 2022 Spain's Princess Leonor and Infanta Sofia in the stands before the match REUTERS/Lisi Niesner 

Princess Leonor and Infanta Sofia of Spain pose with youths at the Dali museum during a visit to Catalunya, in Figueres, Spain, July 3, 2022. Casa de S.M. el Rey/Francisco Gomez/Handout via REUTERS THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. 

Spain's Princess Leonor and Infanta Sofia visit the Dali museum during a visit to Catalunya, in Figueres, Spain, July 3, 2022. Casa de S.M. el Rey/Francisco Gomez/Handout via REUTERS THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. 

Spain's Princess Leonor and Infanta Sofia visit the Dali museum during a visit to Catalunya, in Figueres, Spain, July 3, 2022. Casa de S.M. el Rey/Francisco Gomez/Handout via REUTERS THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. 

Spain's Princess Leonor and Infanta Sofia salute citizens after visiting the Dali museum during a visit to Catalunya, in Figueres, Spain, July 3, 2022. Casa de S.M. el Rey/Francisco Gomez/Handout via REUTERS THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. 

Spain's Princess Leonor and Infanta Sofia visit the Dali museum during a visit to Catalunya, in Figueres, Spain, July 3, 2022. Casa de S.M. el Rey/Francisco Gomez/Handout via REUTERS THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. 

Children wait to receive their first dose of coronavirus disease (COVID-19) vaccine at Infanta Sofia University hospital as Spain begins vaccinating 5-11 year-olds, in San Sebastian de los Reyes, outside Madrid, December 15, 2021. REUTERS/Susana Vera 

Eduardo Munoz, 10, looks on as he gets ready to receive his first dose of coronavirus disease (COVID-19) vaccine at Infanta Sofia University hospital as Spain begins vaccinating 5-11 year-olds, in San Sebastian de los Reyes, outside Madrid, December 15, 2021. REUTERS/Susana Vera 

Children receive their first dose of coronavirus disease (COVID-19) vaccine at Infanta Sofia University hospital as Spain begins vaccinating 5-11 year-olds, in San Sebastian de los Reyes, outside Madrid, December 15, 2021. REUTERS/Susana Vera 

View of syringes for the COVID-19 vaccine at Infanta Sofia University hospital in San Sebastian de los Reyes, outside Madrid, December 15, 2021. REUTERS/Susana Vera 

Children wait after receiving their first dose of coronavirus disease (COVID-19) vaccine at Infanta Sofia University hospital as Spain begins vaccinating 5-11 year-olds, in San Sebastian de los Reyes, outside Madrid, December 15, 2021. REUTERS/Susana Vera 

Maria Mateo, 7, reacts as she receives her first dose of coronavirus disease (COVID-19) vaccine at Infanta Sofia University hospital as Spain begins vaccinating 5-11 year-olds, in San Sebastian de los Reyes, outside Madrid, December 15, 2021. REUTERS/Susana Vera 

Leo Garcia, 10 and his cousin Marcos Gomez, 9, look on as their cousin and sister Candela Gomez, 11, receives her first dose of coronavirus disease (COVID-19) vaccine at Infanta Sofia University hospital as Spain begins vaccinating 5-11 year-olds, in San Sebastian de los Reyes, outside Madrid, December 15, 2021. REUTERS/Susana Vera 

Pablo Peiro, 9, gets a smiley face after receiving his first dose of coronavirus disease (COVID-19) vaccine at Infanta Sofia University hospital as Spain begins vaccinating 5-11 year-olds, in San Sebastian de los Reyes, outside Madrid, December 15, 2021. REUTERS/Susana Vera 

Laura Martinez, 8, reacts after receiving her first dose of coronavirus disease (COVID-19) vaccine at Infanta Sofia University hospital as Spain begins vaccinating 5-11 year-olds, in San Sebastian de los Reyes, outside Madrid, December 15, 2021. REUTERS/Susana Vera 

Dario Martin, 9, and Victor Saiz, 11, wait to receive their first dose of coronavirus disease (COVID-19) vaccine at Infanta Sofia University hospital as Spain begins vaccinating 5-11 year-olds, in San Sebastian de los Reyes, outside Madrid, December 15, 2021. REUTERS/Susana Vera 

Javier Peiro, 11, prepares to receive his first dose of coronavirus disease (COVID-19) vaccine at Infanta Sofia University hospital as Spain begins vaccinating 5-11 year-olds, in San Sebastian de los Reyes, outside Madrid, December 15, 2021. REUTERS/Susana Vera 

Pablo Peiro, 9 years old, reacts as he receives his first dose of coronavirus disease (COVID-19) vaccine at Infanta Sofia University hospital as Spain begins vaccinating 5-11 year-olds, in San Sebastian de los Reyes, outside Madrid, December 15, 2021. REUTERS/Susana Vera 

Children prepare to receive their first dose of coronavirus disease (COVID-19) vaccine at Infanta Sofia University hospital as Spain begins vaccinating 5-11 year-olds, in San Sebastian de los Reyes, outside Madrid, December 15, 2021. REUTERS/Susana Vera 

Spain's Princess Leonor and Infanta Sofia leave after attending the ceremony of the 2021 Princess of Asturias Award for Communication and Humanities at Campoamor Theatre in Oviedo, Spain October 22, 2021. REUTERS/Vincent West 

King Felipe VI of Spain, Queen Letizia, Princess Leonor and Infanta Sofia leave after attending the ceremony of the 2021 Princess of Asturias Award for Communication and Humanities at Campoamor Theatre in Oviedo, Spain October 22, 2021. REUTERS/Vincent West 

King Felipe VI of Spain, Queen Letizia, Princess Leonor and Infanta Sofia stand during the ceremony of the 2021 Princess of Asturias Award for Communication and Humanities at Campoamor Theatre in Oviedo, Spain October 22, 2021. REUTERS/Vincent West 

Spain's Princess Leonor and Infanta Sofia attend the ceremony of the 2021 Princess of Asturias Award for Communication and Humanities at Campoamor Theatre in Oviedo, Spain October 22, 2021. REUTERS/Vincent West 

Spain's King Felipe and Queen Letizia with daughters Princess Leonor and Infanta Sofia attend the ceremony of the 2021 Princess of Asturias Award for Communication and Humanities at Campoamor Theatre in Oviedo, Spain October 22, 2021. REUTERS/Vincent West 

Spain's Royal Family members Princess Leonor, King Felipe, Queen Letizia and Infanta Sofia preside over Princess of Asturias Awards ceremony at Reconquista hotel in Oviedo, Spain, October 16, 2020. Andres Ballesteros/Pool via REUTERS 

Spain's Royal Family members Princess Leonor, King Felipe, Queen Letizia and Infanta Sofia preside over Princess of Asturias Awards ceremony at Reconquista hotel in Oviedo, Spain, October 16, 2020. Andres Ballesteros/Pool via REUTERS 

Spain's Royal Family members Princess Leonor, King Felipe, Queen Letizia and Infanta Sofia preside over Princess of Asturias Awards ceremony at Reconquista hotel in Oviedo, Spain, October 16, 2020. Andres Ballesteros/Pool via REUTERS 

A medical worker takes care of a patient infected with COVID-19 at the intensive care unit (ICU) of the Infanta Sofia University hospital amid the coronavirus disease (COVID-19) outbreak in San Sebastian de los Reyes, outside Madrid, Spain October 14, 2020. REUTERS/Sergio Perez 

A medical worker holds the hand of a patient trying to comfort him at the intensive care unit (ICU) of the Infanta Sofia University hospital amid the coronavirus disease (COVID-19) outbreak in San Sebastian de los Reyes, outside Madrid, Spain October 14, 2020. REUTERS/Sergio Perez 

A medical worker holds the hand of a patient trying to comfort him at the intensive care unit (ICU) of the Infanta Sofia University hospital amid the coronavirus disease (COVID-19) outbreak in San Sebastian de los Reyes, outside Madrid, Spain October 14, 2020. REUTERS/Sergio Perez 

A medical worker takes care of a patient infected with COVID-19 at the intensive care unit (ICU) of the Infanta Sofia University hospital amid the coronavirus disease (COVID-19) outbreak in San Sebastian de los Reyes, outside Madrid, Spain October 14, 2020. REUTERS/Sergio Perez 

Medical workers take care of a patient infected with COVID-19 at the intensive care unit (ICU) of the Infanta Sofia University hospital amid the coronavirus disease (COVID-19) outbreak in San Sebastian de los Reyes, outside Madrid, Spain October 14, 2020. REUTERS/Sergio Perez 

Medical workers take care of a patient infected with COVID-19 at the intensive care unit (ICU) of the Infanta Sofia University hospital amid the coronavirus disease (COVID-19) outbreak in San Sebastian de los Reyes, outside Madrid, Spain October 14, 2020. REUTERS/Sergio Perez 

Medical workers take care of a patient infected with COVID-19 at the intensive care unit (ICU) of the Infanta Sofia University hospital amid the coronavirus disease (COVID-19) outbreak in San Sebastian de los Reyes, outside Madrid, Spain October 14, 2020. REUTERS/Sergio Perez 

Medical workers take care of a patient infected with COVID-19 at the intensive care unit (ICU) of the Infanta Sofia University hospital amid the coronavirus disease (COVID-19) outbreak in San Sebastian de los Reyes, outside Madrid, Spain October 14, 2020. REUTERS/Sergio Perez 

Medical workers take care of a patient infected with COVID-19 at the intensive care unit (ICU) of the Infanta Sofia University hospital amid the coronavirus disease (COVID-19) outbreak in San Sebastian de los Reyes, outside Madrid, Spain October 14, 2020. REUTERS/Sergio Perez 

Medical workers take care of a patient infected with COVID-19 at the intensive care unit (ICU) of the Infanta Sofia University hospital amid the coronavirus disease (COVID-19) outbreak in San Sebastian de los Reyes, outside Madrid, Spain October 14, 2020. REUTERS/Sergio Perez 

Spanish King Felipe, Queen Letizia, Princess Leonor, Infanta Sofia and Spanish Prime Minister Pedro Sanchez attend a parade to mark Spanish National Day at Royal Palace amid the outbreak of the coronavirus disease (COVID-19) in Madrid, Spain, October 12, 2020. Kiko Huesca/Pool via REUTERS 

Spanish King Felipe, Queen Letizia, Princess Leonor and Infanta Sofia attend a parade to mark Spanish National Day at Royal Palace amid the outbreak of the coronavirus disease (COVID-19) in Madrid, Spain, October 12, 2020. Kiko Huesca/Pool via REUTERS 

Spanish King Felipe, Queen Letizia, Princess Leonor and Infanta Sofia attend a parade to mark Spanish National Day at Royal Palace amid the outbreak of the coronavirus disease (COVID-19) in Madrid, Spain, October 12, 2020. Kiko Huesca/Pool via REUTERS 

Spain's King Felipe and Queen Letizia with daughters Princess Leonor and Infanta Sofia visit the education centre "Naum" in Palma de Mallorca, Spain August 11, 2020. REUTERS/Enrique Calvo 

Spain's King Felipe and Queen Letizia with daughters Princess Leonor and Infanta Sofia pose with the director of the education centre "Naum" Margarita Jorda during their visit in Palma de Mallorca, Spain August 11, 2020. REUTERS/Enrique Calvo 

Spain's Princess Leonor and Infanta Sofia visit the education centre "Naum" in Palma de Mallorca, Spain August 11, 2020. REUTERS/Enrique Calvo 

Spain's Princess Leonor and Infanta Sofia visit the education centre "Naum" in Palma de Mallorca, Spain August 11, 2020. REUTERS/Enrique Calvo 

Spain's King Felipe and Queen Letizia with daughters Princess Leonor and Infanta Sofia visit the education centre "Naum" in Palma de Mallorca, Spain August 11, 2020. REUTERS/Enrique Calvo 

Spain's Princess Leonor and Infanta Sofia visit the education centre "Naum" in Palma de Mallorca, Spain August 11, 2020. REUTERS/Enrique Calvo 

Spain's Princess Leonor and Infanta Sofia visit the education centre "Naum" in Palma de Mallorca, Spain August 11, 2020. REUTERS/Enrique Calvo