Happy birthday, King Charles! His Royal Highness is marking a very special milestone today, celebrating his 77th birthday.
Having ascended the throne in 2022 following the death of his mother, Queen Elizabeth II, the King has gone on to make his mark as monarch in just a few short years.
To mark his big day, an unseen photograph of the King taken by portrait photographer Millie Pilkington was shared by the Royal Family. In the candid shot, the King can be seen in the green grounds of the Sandringham Estate in Norfolk, smiling at the camera with a shepherd's crook in hand.
"77 today! Thank you for the kind words and well wishes on His Majesty’s Birthday," the caption beside the photograph said.
So, how much do you know about the life and work of King Charles III? Take our quiz to test yourself.
Share your scores and let us know how you did in the comments section below!
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