Prince Louis was photographed blowing out Princess Charlotte's candle at a carol service in the royal prankster's latest cheeky move.
Prince William and Kate Middleton's youngest son has won hearts with his antics on the balcony of Buckingham Palace and during major royal events.
And the Princess of Wales' Together at Christmas royal carol service was no exception as he leaned over and blew out the flame on his older sister's candle.
Louis' past antics include a photo from Queen Elizabeth II's Platinum Jubilee in which he covered his ears and screamed during a fly past by the Royal Airforce on the Buckingham Palace balcony as well as some impressive dancing at King Charles' coronation.
After the jubilee, William and Kate acknowledged the star role Louis played in a series of posts on X, formerly Twitter: "What a fantastic weekend of celebrations. Seeing people across the nation coming together with family, friends and loved ones has been extremely special."
"We all had an incredible time, especially Louis," they added.
Kate's carols concert came a week-and-a-half after she was linked in the Dutch language version of Endgame, by Omid Scobie, to Meghan Markle's account that an unnamed royal expressed "concerns" about how dark her unborn child's skin might be.
The book, in error, went to press identifying King Charles III as having made the remark during a conversation when Kate was said to have been present. Neither name has yet been confirmed officially.
Dutch Endgame also suggested that Charles wrote to Meghan shortly after her accusations, made to Oprah Winfrey, in March 2021, to clarify that no ill will or malice was intended in any remark made.
During Kate's carols on Friday, December 8, actor Jim Broadbent, star of films including Paddington and Bridget Jones' Diary, read an extract from Letters From Father Christmas by JRR Tolkien, who wrote The Lord of the Rings books.
The Princess of Wales also met children who have helped make the world a better place, including Oscar Burrow, 7, who raised more than £40,000 [around $50,000] by climbing 12 mountains for a children's hospice.
According to Sky News, Kimberley Burrow, his mother, said Kate "had heard about what he's done and he's doing a fantastic job, and hopes what he's doing will inspire other children to do amazing things."
Jack Royston is chief royal correspondent for Newsweek, based in London. You can find him on X, formerly Twitter, at @jack_royston and read his stories on Newsweek's The Royals Facebook page.
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About the writer
Jack Royston is Newsweek's Chief Royal Correspondent based in London, U.K. He reports on the British royal family—including King Charles ... Read more