Princess Leonor is 20! When the Princess of Asturias one day ascends the throne, she will be Spain’s first queen regnant since Queen Isabella II in the 19th century. Back on her 18th birthday, King Felipe and Queen Letizia ’s elder daughter swore an oath to the Spanish constitution, declaring that from that day, she owed herself "to all Spaniards, whom I will serve at all times with respect and loyalty."

She added, “There is no greater pride. On this important day - which I will always remember with emotion - I ask you to trust me, as I have placed all my trust in our future, in the future of Spain.”

To celebrate the future Queen turning 20 on October 31, 2025, here are 20 facts about Princess Leonor of Spain.

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Leonor turned 20 on October 31, 2025

1.

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