As the presumptive heir to the Spanish throne, Princess Leonor has long been training for her diplomatic future. She conquered her first public speaking engagement at the age of 13, according to Hello! magazine. The princess made her public speaking debut at an event commemorating the 40th anniversary of Spain's Constitution, reading one of the articles of the country's Magna Carta. Her parents stood beside her onstage, offering support and encouraging the young princess. Princess Leonor impressed the crowd, earning a round of applause after her speech, according to Us Weekly. Her father, King Felipe VI, also made his first public speech at 13 years old, the magazine reported.

Just because she's the younger sister doesn't mean that Infanta Sofia doesn't have her fair share of public messages. In the spring of 2020, Infanta Sofia and Princess Leonor released a recorded speech that thanked other young people in Spain for abiding by coronavirus lockdowns, per Hola! magazine. "Many children have lost their grandparents, family members, they are having a very hard time," Princess Leonor said. "This is why we want to say thank you to all the people who are helping out and looking after us in so many ways," her sister added.