Despite a challenging year for himself and his entire family, Princess Kate included, sources say Charles has “a levity about him and a sense of joy.”

The monarch marked the occasion with a visit to a surplus food festival in Deptford, south London, while gun salutes were fired at locations including the Tower of London.

You have to see the photo the Prince and Princess of Wales' social media accounts used to celebrate King Charles' 76th birthday.

The Post hears that the royals are expected to mark Charles' birthday with an intimate celebration this weekend at Highgrove House.

The Prince and Princess of Wales have shared a fun photo of the King to mark his 76th birthday, with royal fans praising William and Kate for the choice of snap

Birthday wishes are in order for King Charles III as the beloved royal celebrates his 76th year on Earth today! Tributes on behalf of the beloved King's special day, shared by friends and acquaintances from across the globe,

Kate Middleton and Prince William are celebrating King Charles' birthday! The King turned 76 on Thursday, Nov. 14, and the Prince and Princess of Wales, both 42, were among the first to send social media tributes.

Prince Harry and Meghan Markle have remained silent on King Charles's birthday. The Duke and Duchess of Sussex have not sent a public message to the monarch on his 76th birthday. Earlier today, the Prince and Princess of Wales wished the King a happy birthday publicly on social media.