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PRINCE William and Prince Harry are the children of King Charles and the late Princess Diana.

But how old are the royal siblings and what is the age gap between them? Here's everything you need to know.

 Prince William and Prince Harry are the children of King Charles and the late Princess Diana
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Prince William and Prince Harry are the children of King Charles and the late Princess DianaCredit: The Mega Agency

How old is Prince William and when is his birthday?

Prince William was born at Mary's Hospital in London, on June 21, 1982.

In 2024, the prince celebrated his 42nd birthday.

He is two years older than his younger brother Prince Harry who was born on September 15, 1984.

In 2022, the late Queen shared a sweet message to celebrate William's 40th birthday.

The official Royal Family Instagram account shared a message: "Happy 40th Birthday to The Duke of Cambridge!

"Prince William Arthur Philip Louis is the elder son of The Prince of Wales and Diana, Princess of Wales.

"He was born at 9.03pm on 21 June 1982, at St Mary’s Hospital, Paddington, London.

"A bulletin, placed on the gates of Buckingham Palace announced that he weighed 7lb 1 1/2 oz."

How tall is Prince William?

The prince stands at 1.91m tall - which is just under 6ft 3inches.

Younger brother Harry is just a touch shorter at 1.86m - 6ft 1inch.

Prince William's wife Kate measures 1.75m - 5ft 7inches.

What did Prince William look like when he was young?

As a toddler, Prince William had blonde hair which became darker as he got older.

During his teens and in early 20s, he had thick hair which he would style by brushing the hair forward.

 Prince William pictured in the early 20s
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Prince William pictured in the early 20sCredit: PA:Press Association

After graduating from St Andrew's University in Scotland - where he met his wife Kate - the young prince took a gap year abroad.

When he returned, he jumped straight back into royal life and began a career in the military, as well as formally working as a senior member of the royal family.

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