Prince Charles and Princess Diana leave the hospital with newborn William on June 22, 1982.
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Prince William is watched by his parents as he takes his first steps in public at Kensington Palace in 1983.
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William is accompanied by nanny Barbara Barnes as he leaves St. Mary's Hospital in London in 1984. He was visiting his mother and his newborn brother, Prince Harry.
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From the balcony of Buckingham Palace, a young Prince William watches the Trooping of the Colour in 1985. He is joined by Lady Gabriella Windsor, left, and Lady Zara Phillips.
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Prince William waves from a carriage en route to the wedding of his uncle Prince Andrew and Sarah Ferguson in 1986.
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William attends his first day at Wetherby School in 1987.
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Charles and his family visit Spain in 1988.
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William and Harry ride bicycles with their parents while on vacation in the Isles of Scilly in 1989.
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William shovels sand onto his mother while playing on a beach in 1990.
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William and Harry wave from the deck of the Royal Yacht Britannia in 1991.
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Princess Diana and Prince William wait for Prince Harry after attending an Easter Sunday church service at Windsor Castle in 1992.
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Prince William grimaces after riding Splash Mountain at Walt Disney World in Florida in 1993. He was with friends of the royal family on a three-day vacation.
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Prince William accompanies his mother to a tennis match at Wimbledon in 1994.
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Queen Elizabeth II, Prince William and Prince Charles attend a service commemorating V-J Day outside Buckingham Palace in 1995.
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Prince Charles and Prince Harry, at left, stand for anthems as Prince William, right, looks around during the Five Nations rugby championship in 1996.
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Prince William and his brother bow their heads after their mother's funeral at Westminster Abbey in 1997. Princess Diana died in a car crash in Paris. William was 15 at the time, and Harry was 12.
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Prince William receives flowers from an adoring crowd in Vancouver, British Columbia, in 1998. He was on a weeklong vacation with his father and brother, though they also made time for official engagements.
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Britain's Queen Mother joins Prince Charles and his sons during an occasion marking her 99th birthday in 1999.
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Prince William hammers a log while helping construct walkways in a remote village in Chile in 2000.
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William, left, and Harry take part in an exhibition polo match in Gloucestershire, England, in 2001.
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Members of the royal family stand vigil besides the Queen Mother's coffin in 2002. Prince William, right, stands alongside Prince Harry, Princess Anne and Sophie of Wessex.
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A London office worker licks a first-class stamp that was issued to mark Prince William's 21st birthday in 2003. Commemorative coins were also minted for the occasion.
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Prince William makes his water polo debut for the Scottish national universities squad during the annual Celtic Nations tournament in April 2004. William was attending the University of St. Andrews.
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Prince William celebrates his 30th birthday in June 2004.
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William graduates from St. Andrews University in 2005. He earned a degree in geography.
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Queen Elizabeth II glances up at William, right, as she inspects the parade at the Royal Military Academy in 2006. William graduated as an Army officer and later went on to receive his Royal Air Force pilot's wings.
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Prince William and Prince Harry speak on stage with Elton John, far left, during a concert they put on to celebrate Princess Diana in 2007. The event fell on what would have been their mother's 46th birthday.
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Prince William sports a beard for the first time in public at a Christmas Day church service in 2008. He was clean-shaven by early January.
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Prince William walks with a group of homeless people during a 2009 hike with Centrepoint, the United Kingdom's largest youth charity for the homeless. William became the patron of the organization in 2005.
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During an official overseas visit in 2010, Prince William is welcomed to Sydney with a traditional smoke ceremony.
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Prince William kisses his wife, Catherine, on the balcony of Buckingham Palace after their wedding on April 29, 2011. The two met while attending the University of St. Andrews.
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William and Catherine meet with US President Barack Obama and first lady Michelle Obama while the Obamas visited Buckingham Palace in May 2011.
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William throws a foam javelin during a visit to Nottingham, England, in 2012. He and his wife were in the city as part of Queen Elizabeth II's Diamond Jubilee tour, marking the 60th anniversary of her accession to the throne.
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William and Catherine depart St. Mary's Hospital in London with their newborn son, George, in July 2013.
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William and Catherine sit in front of the Taj Mahal while on a royal tour of India in April 2016.
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Prince William and Prince Harry try out "Star Wars" lightsabers during a tour of the movie sets in Iver Heath, England, in April 2016.
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William and Catherine join from left, Camilla, Duchess of Cornwall; Prince Charles; Queen Elizabeth II; and Prince Philip at a Buckingham Palace reception in December 2016.
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William and Harry are joined by Peter Phillips, left, during a ceremonial procession at the funeral of Prince Philip in April 2021.
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William and Harry unveil a statue they commissioned of their mother on what would have been her 60th birthday in July 2021.
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Prince William sits by the Imperial State Crown during the opening of Parliament in May 2022.
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William and Catherine stand with their children -- from left, Louis, Charlotte and George -- on the balcony of Buckingham Palace in June 2022. It was after the Trooping the Colour parade.
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This photo of Prince William and his children in Jordan was released by Kensington Palace to celebrate Father's Day in June 2022.
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William and Catherine join Prince Harry and Meghan, the Duchess of Sussex, as they view tributes to Queen Elizabeth II outside Windsor Castle in September 2022. It was the first time the public had seen the two brothers together since the Queen's Platinum Jubilee celebrations.
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Prince William, center, and other grandchildren of Queen Elizabeth II stand vigil at her coffin in September 2022. She was lying in state at Westminster Hall.
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William joins his dad, brother and other members of the royal family during the Queen's state funeral in September 2022.
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Prince William shakes hands with US President Joe Biden during a visit to Boston in December 2022. The two men shared "warm memories" of the Queen, according to Kensington Palace. William and Catherine were in Boston to attend the Earthshot Prize Awards that William founded two years prior.
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William and Catherine take part in a spin class during while visiting a fitness center in Port Talbot, Wales, in February 2023.
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Prince William holds hands with Tymofii, a young Ukrainian refugee, during a visit to Warsaw, Poland, in March 2023.
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