William, who will be in the crowd at Wembley tonight for England’s Euro 2020 match against the Czech Republic, was also sent warm wishes by the Queen and other royals. Clarence House shared a 1982 photo of Charles gazing adoringly at six-month-old William as he cradles him on his lap at Kensington Palace.

       Father and son were also pictured with the Duchess of Cornwall at the opening of the first Invictus Games arranged by Prince Harry in 2014 – but Harry, 36, did not feature in the image.

       Relations between the brothers are strained after the Duke and Duchess of Sussex accused the Royal Family of racism and aides accused Meghan, 39, of bullying staff.

       The monarchy’s official Twitter account posted greetings to William, saying: “Wishing The Duke of Cambridge a very Happy Birthday today! HappyBirthdayHRH.”

       Shared photographs included William, Kate, 39, and their children George, seven, Charlotte, six, and Louis, three, on the Buckingham Palace balcony and the Duke in military uniform.