Let's make this birthday one to remember.

40 years old (Born on September 15, 1984)

Second son of Charles, Prince of Wales; He is famous from Princess Diana and Prince Charles's youngest son.

Great-great-great-grandson of King Edward VII and Queen Alexandra. June 2004: Announced that he will be pursuing a military career and will be entering Royal Military Academy Sandhurst for officer's training in January 2005. On his 18th birthday, the Queen gave him his own unique Coat of Arms. Grandson of Queen Elizabeth II and Prince Philip. Spent part of his gap year doing charity works in South Africa.

Currently attends Eton College. [Fall 2001]

Had secretly deployed to fight the Taliban in Afghanistan from December 2007 to February 2008, which was confirmed by the British Ministry of Defence at the end of his active duty.

With his father Charles and brother William, he was interviewed by 'Anthony McPartlin' and Declan Donnelly for The Prince's Trust 30th Birthday.

Will spend July and August training with the Rugby Football Union to become an Assistant Rugby Development Officer (RDO) for young people. The RDO is designed to promote the game throughout England and encourage wider youth participation. [Summer 2004]

When he returns from his gap year (summer 2004) in Southern Africa, he will begin preparation for the Regular Commissions Board (RCB) exams, which is required for his entrance to the Royal Military Academy Sandhurst in January 2005.

Spent the first part of his gap year in Australia. Then, he traveled to Africa where he worked in an orphanage in Lesotho.

Son of Prince Charles and Princess Diana.

Born at 4:20pm at St Mary's Hospital, Paddington in central London, he was christened by the Archbishop of Canterbury, Dr. Robert Runcie, on 21 December 1984 in St George's Chapel, Windsor.

Is fast becoming a respected polo player of the highest calibre.

Has two private secretaries just to deal with his love letters.

Named one of People Magazine's "25 Most Intriguing People of 2001".

Great-great-grandson of King George V and Queen Mary.

He sparked much controversy after tastelessly wearing a Nazi uniform with a swatstika armband to a costume party in early January 2005.

Is third in line to the British throne.

Great-grandson of King George VI and Queen Elizabeth the Queen Mother (the Queen Mother).

He will spend part of the summer working on a Duchy of Cornwall farm. [2004]

One of his best friends is Simon Diss, a fellow polo player.

Nephew of Prince Andrew, Princess Anne, Earl Charles Spencer, and Edward Wessex.

Attended Mrs Jane Mynors' nursery school, the pre-prep Wetherby School, both in West London, and later the Ludgrove School in Berkshire.

Younger brother of Prince William Windsor.

Great-great-great-great-grandson of Queen Victoria and Prince Albert.

Is registered for polo under the name Harry Wales.

Has wrapped shooting on "The Forgotten Kingdom: Prince Harry in Lesotho" a documentary on the AIDS crisis in Lesotho. The documentary features footage shot by Harry himself. He is hoping sales of the film to foreign TV firms will provide much-needed funds for children in Lesotho orphaned by AIDS.

Often joins his father, Prince Charles, and brother, Prince William, for winter holiday ski vacations in Switzerland.