Prince Charles has led tributes to his son Prince William on his 40th birthday.
The second in line to the British throne celebrates the milestone today (21.06.22), and his father - who also has Prince Harry, 37, with the late Diana, Princess of Wales - and his wife Camilla, Duchess of Cornwall were among those sending their well-wishes to the future king.
A tweet on the Clarence House Twitter account read: "Wishing The Duke of Cambridge a very happy 40th birthday!"
The note was accompanied by a series of pictures of William over the years, including a sweet black-and-white snap of his 73-year-old father holding his firstborn as a newborn.
Queen Elizabeth also shared a message via the official Royal Family page, along with several facts about her grandson.
The first tweet began: "Happy Birthday to The Duke of Cambridge!"
Another detailing his birth read: "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."
The birthday messages come after it was revealed that the Duke and Duchess of Cambridge will hold a joint 40th birthday party later this summer.
William is holding off on any major celebrations for now and instead, he and his wife - whose birthday plans in January were affected by the coronavirus pandemic - will join forces for a bigger bash towards the end of the summer.
The pair plan to follow tradition to "celebrate their landmark birthdays in style" by collaborating on their celebrations and have been given the go-ahead to invite people to either Windsor Castle or the Sandringham Estate for the function.
However, according to the Daily Mirror newspaper, The Queen won't confirm if she'll be joining her family at the party until the day of the bash because of her ongoing mobility issues.
When Catherine turned 40 earlier this year, she had an intimate celebration with friends and family at her Anmer Hall home in Norfolk amid concerns about the Omicron variant of coronavirus.
At the time, a source said: "There are likely to be low-key celebrations for the Duchess. She didn't want anything flashy anyway – that's not exactly her thing – but particularly given the current climate anything is likely to be scaled down."
A similar big party was staged in Windsor in June 2000, when William turned 18, Prince Andrew turned 40, Princess Anne turned 50, and the late Princess Margaret turned 70.
Meanwhile, for the first time, William's birthday will not be marked by the flying of the Union flags over government buildings.
Instead, only the queen and Charles - the first in line to the throne - will have the honour this year.
It is believed the decision was made in a bid to save Prince Andrew from embarrassment after a number of councils across the country had said they wouldn't obey the protocol to fly the flag on his birthday because of his now-settled lawsuit with Virginia Roberts, who had accused him of sexually abusing her when she was 17, a claim he has denied.
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