Britain's Prince William, who celebrated his 21st birthday on Saturday June 21, 2003, in an official birthday portrait.
Britain's Prince William, photographed by Mario Testino. The prince is 21 on Saturday, June 21.
Prince William photographed in St James's Palace, London, June 3, 2003, in a portrait released for his 21st birthday.
Princess Diana and Prince Charles are shown with their son during a photo session at Kensington Palace in London Dec. 22, 1982.
This is a 1984 photo of Princess Diana with sons Prince William, foreground, and Prince Harry.
Jane Mynors welcomes Prince William, 3, on his first day of school at her private kindergarten as his parents watch in Notting Hill, London, England, Sept. 24, 1985. Prince William was the first heir to the British throne to receive his pre-school education at a private kindergarten. He was also the first to wear disposable diapers and to be born in a hospital.
The Prince and Princess of Wales are shown with their sons, Prince Harry and Prince William in the Sicily Islands in June 1989.
Diana, Princess of Wales, enjoys a ride on the Maid of Mist in Niagara Falls, Ontario, Canada, in this October 1991, photo, with her sons Prince Harry, 7, and Prince William, 9.
Diana, Princess of Wales, puts her hand on her son Prince William's back as they entered the Chelsea Harbour Club in London Sept. 2, 1996. Her divorce from the Prince of Wales had been finalized only a few days previously.
Prince William, seated, flanked by his parents and accompanied by his younger brother, signs the traditional entrance book at Eton College, west of London, for his first day at the school Sept. 6, 1995. He was the first future king of Britain to attend the venerable institution that for more than 500 years has educated the sons of Britain's elite.
The Prince of Wales, left, and his sons Prince William, third from left, and Prince Harry, second from left, view the sea of floral tributes left for their mother, Diana, Princess of Wales, at Kensington Palace, in background, Friday Sept. 5 1997. Princess Diana died following a car crash in Paris Aug. 31, 1997.
Prince William, right, and his uncle, Earl Spencer, wait in front of Westminster Abbey in London to attend the funeral ceremony of Diana, Princess of Wales Sept. 6, 1997.
Britain's Queen Elizabeth, Queen Mother, talks with her great-grandson, Prince William, outside her residence, Clarence House, in central London Aug. 4, 1999, where she was celebrating her 99th birthday.
Britain's Prince William, right, and Prince Harry leave Buckingham Palace for the Trooping of The Color at Horse Guards Parade in Central London, Saturday, June 14, 2003.
Prince Harry, left, pulls on his socks as he and his older brother Prince William prepare to play polo in a framegrab from an ITN pooled video released Friday June 20, 2003, to mark William's 21st birthday on Saturday. The video shows the princes playing polo alongside their father at Cowarth Park Polo Club, Sunninghill, England Monday June 16, 2003.
Britain's Prince William, right, talks to his father, the Prince of Wales, center, and brother, Prince Harry, in another framegrab from an ITN pooled video.
Prince William, right, and his father the Prince of Wales, sample a drink, Thursday, June 19, 2003, during a visit to the Anglesey Food Fair in north Wales. The prince and his father, Prince Charles, were in Wales for the day.
Prince William with a balloon given to him by a member of the public, as he leaves NASH (Newport Action for Single Homeless) in Newport, Wales, Thursday, June 19, 2003.
The prince blows out the candles on a birthday cake given to him, Thursday, June 19, 2003, during his visit to the Anglesey Food Fair in north Wales.
The prince plays a marimba as the Shakarimba band, flown in from Botswana to play at his 21st birthday, rehearsed in the Queen's Guard Chamber at Windsor Castle June 20 2003. Prince William chose an "Out of Africa" theme for birthday party at the castle on June 21 and invited more than 300 family and friends