The youngest daughter of King Felipe VI and Queen Letizia traveled to Gijón in Northern Spain to surprise her sister.

Tiara time for Queen Letizia of Spain, ... Princess Leonor was accompanied by her parents and 16-year-old sister, Princess Sofia, to the Congress of Deputies in Madrid, ...

Crown Princess Mary and Queen Letizia exuded glamour in tiaras and gowns at a state banquet on Nov. 6. Future monarchs Princess Leonor and Prince Christian were mentioned in speeches at the banquet.

The Princess of Wales has worn the Queen Mary Lovers’ Knot tiara for 10 of her 15 tiara moments in the past 14 years.

On Tuesday, Spain’s future queen Princess Leonor celebrated her 18th birthday—and sealed her claim to the throne—with a swearing-in ceremony at the nation’s parliament building, Palacio de ...

Princess Anne and Queen Elizabeth wear tiaras at the state visit to Austria in 1969. Fox Photos/Hulton Archive/Getty. Princess Anne, 72, wore her first tiara as a teenager and continued to step ...