The young royals

Prince William, Duke of Cambridge and Prince Harry leave the Christmas Day service at Sandringham on December 25, 2013, in King's Lynn, England.

Perhaps the best known of the young royals is Britain's Prince William. Second in line to the British throne, "Wills" seem well suited for the job. The eldest child of Prince Charles and Diana, Princess of Wales, has followed in his father's military footsteps and his mother's devotion to charitable organizations.

Prince Harry, third in line to the British throne, recently served a brief stint in Afghanistan with the Royal Army, in which he is an officer. The red-headed rebel of the family, known for his partying ways, appears to be growing up and making his family proud. With Prince Seeiso of Lesotho, Harry founded the charity Sentebale to help orphaned and vulnerable young people in the Southern African country.

Britain's Princess Beatrice, right, Princess Eugenie, leave St. George's Chapel in Windsor, England, with their father, Prince Andrew, the Duke of York, after attending the marriage ceremony of their cousin, Peter Phillips to Autumn Kelly on May 17, 2008. A look-alike of her mom, Sarah Ferguson, Beatrice was the first princess to be born into the immediate British Royal family since the birth of Princess Anne in 1950.

Though they look like they should be on magazine covers, Princess Madeleine, third in line to the Swedish throne, is an accomplished equestrian and her older brother, Prince Carl Philip, second in line, is an athlete studying design and drawing. Both undertake royal duties on behalf of their father, King Carl XVI Gustaf.

Sweden's Crown Princess Victoria arrives for the wedding of Denmark's Prince Joachim and Marie Cavallier of France in Denmark May 24, 2008. Currently the world's only female heir apparent to a royal throne, Victoria has yet to find her future king. The daughter of King Carl XVI Gustav and Queen Silvia is the godmother to a number of royal children, most of them future heirs, as well.

Two children of Princess Caroline of Hanover, Charlotte Casiraghi and brother Pierre arrive for the "Rose Ball" March 29, 2008, in Monaco. Charlotte is popular with the paparazzi, who say her style and looks are reminiscent of her mother and grandmother, actress Grace Kelly. Pierre is fluent in several languages and plays the saxophone. They are next in line to the throne of Monaco after their mom and brother, Andrea.

Britain's Zara Phillips smiles as she prepares in the warm up area at the World Equestrian Festival CHIO Aachen 2007 in Aachen, Germany, July 6, 2007. The accomplished equestrian is the daughter of Princess Anne, the only daughter of Queen Elizabeth II. Phillips is twelfth in the British Order of Succession.

Japan's Princess Aiko is led by her mother during an outing of her Gakushuin Kindergarten calss in Yokohama, near Tokyo, March 6, 2008. The princess, already an avid sumo fan, is the first child of Crown Prince Naruhito, heir apparent to the Japanese throne, and Crown Princess Masako.

Japan's Prince Hisahito is held by his mother, Princess Kiko, as the family of Prince Akishino arrives at the Imperial Stock Farm in the town of Takanezawa, Tochigi Prefecture, on March 28, 2008. Th eprince is the first boy to be born to the Japanese royal family in 41 years and is third in line to the Chrysanthemum Throne.

Princess Ingrid Alexandra of Norway celebrates her fourth birthday. The daughter of Crown Prince Haakon and Crown Princess Mette-Marit is second in the line of succession to the Norwegian throne after her father. The young princess is a fourth cousin to Britain's Prince William. Crown Princess Victoria of Sweden is her godmother.

Spain's Princess Letizia, left and Crown Prince Felipe pose with their daughters Sofia, second left and Leonor, next to Queen Sofia, right, before Sofia's baptism at the Zarzuela palace just outside Madrid, July 15, 2007. Leonor is the second in the succession to King Juan Carlos after her father.

The Royal blondes of Belgium: From left, Prince Gabriel, Princess Mathilde holding new baby Princess Eleonore, Princess Elisabeth, Prince Philippe and Prince Emmanuel at the Erasme Hospital in Brussels, April 17, 2008. Elisabeth is second in line to the throne after her father, the heir apparent.

Prince Christian, second in line to the Danish throne, got his head stuck between the railings on the balcony of Amalienborg Palace in Copenhagen, Denmark, on April 16, 2007, as the royal family gathered for the traditional birthday appearance by Queen Margrethe, center. From left to right are Crown Princess Mary, Crown Prince Frederik, Prince Christian, the Queen, Prince Henrik and Prince Joachim.

Dutch Princess Maxima, left, and her husband Prince Willem-Alexander, right, walk through the snow with their daughters Princess Catharina-Amalia and Princess Alexia, center from left, in the Austrian skiing resort of Lech, on Feb. 11, 2007.

Denmark's Prince Joachim and French-born princess Marie show off their newborn princess to the public for the first time, Jan. 27, 2012, at Rigshospitalet in Copenhagen. The baby was born Jan. 24, 2012.

Sweden's Crown Princess Victoria and her husband, Prince Daniel, pose with their infant daughter, Princess Estelle, in this photo released by the Swedish Royal Court.

The baby girl was born on Feb. 23, 2012, and given the full name and title Princess Estelle Silvia Ewa Mary of Sweden, Duchess of Ostergotland. She is second in line to the Swedish throne, behind her mother.