MADRID, SPAIN - OCTOBER 31: Crown Princess Leonor of Spain swears allegiance to the Spanish constitution at the Spanish Parliament on the day of her 18th birthday on October 31, 2023 in Madrid, Spain. (Photo by Juan Naharro Gimenez/Getty Images)
MADRID, SPAIN - OCTOBER 31: Crown Princess Leonor of Spain swears allegiance to the Spanish constitution at the Spanish Parliament on the day of her 18th birthday on October 31, 2023 in Madrid, Spain. (Photo by Juan Naharro Gimenez/Getty Images)