Who is Princess Leonor, the Gen-Z royal set to be Spain’s first queen in 150 years?

Princess Leonor, 20, is set to become Spain's first reigning queen in nearly 150 years, succeeding her father King Felipe VI when he abdicates or dies. Leonor has completed rigorous military training, including solo flights and naval voyages, and will receive the Gold Medal of the Region of Murcia for her achievements. She is highly educated, multilingual, and was officially declared heir apparent at age 18 after taking an oath in the Spanish parliament.