Queen Letizia and King Felipe VI of Spain's eldest daughter, Princess Leonor, departed Madrid for her official trip to Portugal on Friday. The trip marks the 18-year-old's first solo royal visit.

Princess Leonor of Asturias took to her royal duties dressed in a striking all-white power suit. In celebration of her 18th birthday, the princess swore allegiance to the Spanish Constitution ...

Princess Leonor is the eldest daughter of King Felipe VI and Queen Letizia of Spain. The young royal has attended several public engagements with her parents over the years, and with each new ...

Leonor was joined by her immediate family—father King Felipe VI, mother Queen Letizia, and sister Princess Sofía—as well as a range of military and government officials.

Princess Leonor wore a black-and-white midi dress with flowers cascading down the fabric. Princess Sofía fashioned a long-sleeve red dress with an asymmetric hemline.

Princess Leonor of Spain celebrated her 18th birthday in a major way, and made a regal fashion statement in a white suit! See how Kate Middleton, Meghan Markle, Queen Letizia and more have taken ...

Princess Leonor of Spain is the height of professionalism in her white naval uniform as she continues her six-month training cruise The Spanish royal, 19, boarded The Elcano Vessel in Tenerife today ...

Princess Leonor of Spain wowed in a red power suit as she travelled to Portugal on her first official solo visit abroad. The royal, 18, stuck with what she knew and took style inspiration from her ...

Princess Leonor of Asturias took to her royal duties dressed in a striking all-white power suit. In celebration of her 18th birthday, the princess swore allegiance to the Spanish Constitution before ...

Princess Leonor of Asturias took to her royal duties dressed in a striking all-white power suit. In celebration of her 18th birthday, the princess swore allegiance to the Spanish Constitution ...