© Getty Images

Brothers - Prince William is the older brother, born on June 21, 1982. Prince Harry was born just two years later, on September 15, 1984. They were born to parents Charles and Diana, Prince and Princess of Wales.

© Getty Images

Heir and spare - William has been second-in-line to the throne since birth. Harry is sixth-in-line to the throne.

© Getty Images

Just kids - The brothers dressed up as officers of the law.

© BrunoPress

Careers - The Guardian reports that when he was seven, William told the Queen that he wanted to become a policeman. However, Harry replied "Oh no, you can't – you've got to be king."

© Getty Images

Normality - Diana wanted her sons to live as normal lives as possible. She took them to Disney World and McDonald’s, as well as AIDS clinics and homeless shelters.

© Getty Images

Traumatic - The brothers’ parents divorced in 1996. Tragically, Diana lost her life in a car crash in Paris the following year.

© Getty Images

Tragedy - At the time, Harry and William were at Balmoral Castle in Scotland with their father. Prince Charles broke the news to his sons.

© Getty Images

Heartbreaking - At Diana’s funeral, 12-year-old Harry walked behind the funeral procession from Kensington Palace to Westminster Abbey.

© Getty Images

Education - The brothers went to the same independent school, Wetherby, in Notting Hill, London.

© Getty Images

Marriage - When William married Kate Middleton, the brotherly bond remained unbroken. Harry has even called Middleton the big sister he never had, as noted by Today.

© Getty Images

Best man - Harry was William's best man at his wedding to Kate Middleton in 2011. William played the same role for Harry when he married Meghan Markle in 2018.

© Getty Images

Counsel - Although Diana was a polarizing figure in the Royal Family, she brought her two sons closer together. After her death, Harry started seeing a therapist, as recommended by his brother.

© Getty Images

Shared passions - A handful of shared interests have kept the brothers close over the years. They both served in the military, and share a passion for flying.

© Getty Images

Charities - The brothers set up the Royal Foundation together, which is the base for their different nonprofit campaigns.

© Getty Images

Father - Prince Charles maintains a good relationship with both his sons.

© Getty Images

Tribute - The brothers paid tribute to their mother with the Concert for Diana in 2007. The benefit concert took place at Wembley Stadium in London, with 63,000 in attendance.

© Reuters

Sense of humor - Harry takes part in a fun run while wearing a mask of William in Rio de Janeiro, Brazil.

© Reuters

Young family - The Royal Family poses with Eton housemaster Dr. Andrew Gailey. This was William's first term at the revered Eton College.

© Reuters

Holidays - The young brothers with their mother during a trip to Palma de Mallorca in Spain.

© Reuters

Duties - In 2017, the brothers joined their father at the Canadian National Vimy Memorial. They were there to honor the 100th anniversary of the Battle of Vimy Ridge.

© Reuters

Magic - Harry, William, and Kate joke around at the Warner Bros Studios in Hertfordshire, England. The trio look a little like Ron, Hermione, and Harry.

© Getty Images

Tight friends - Harry, William, and Kate attend the opening of the Global Academy in London.

© Getty Images

Formal? - Harry makes his brother laugh during a formal event in 2011.

© Getty Images

Playing around - The brothers duel with lightsabers at Pinewood Studios in London.

© Reuters

Family events - Harry and William suit up for the wedding of Pippa Middleton and James Matthews.

© Reuters

Superheroes - The brothers play around with Batman's costume during a trip to Warner Bros. Studios in Hertfordshire, England.

© Reuters

Tribute -

Harry and William take a look at floral tributes to their mother on the 20th anniversary of her death.

See also: Prince William: 37 years of love, loss, and new looks.

© BrunoPress