Published: Jan 15, 2026, 23:06 IST | Updated: Jan 15, 2026, 23:06 IST
Princess Leonor de Borbón y Ortiz, born October 31, 2005, to King Felipe VI and Queen Letizia, serves as heir presumptive to Spain's throne, positioned to become the first queen regnant since Isabella II in 1868. Now 20, she swore allegiance to the Constitution on her 18th birthday in 2023, solidifying her role as Princess of Asturias.