Mia Tindall is said to bring out Princess Charlotte's "naughty" side, with the young royal often known for showcasing her "responsible" side when it comes to her two brothers. Prince William and Princess Kate's only daughter, now aged 10, has often been seen joking around with Mia on numerous occasions.

The 11-year-old is the eldest daughter of Mike and Zara Tindall - and, like Charlotte, has two siblings, Lena and Lucas Tindall. Charlotte and Mia showed off their close bond during the Christmas Day walkabout back in 2023.

Speaking of their bond, Ingrid Seward, Editor-in-Chief of Majesty Magazine, told Fabulous: “Princess Charlotte and Mia Tindall have become best friends, when the cheeky pair are together that is."

She continued: "Charlotte is known for being super responsible for both of her brothers, telling them what to do and when to do it at royal occasions. Mia is much more adventurous.

"But as total opposites they become as one as children do when they are together."

Speaking of Charlotte's dad and Mia's mum, who are cousins, Ms Seward spoke of their close relationship as children - and to this day.

The royal expert continued: "Prince William and Zara were also partners in crime when they were young.

"Nannies would dread the two of them being together as they were super naughty, noisy and loved getting into trouble. Zara and William are still good friends today.

"Hopefully Charlotte and Mia will continue their friendship for as long. It makes royal get togethers much more fun and at their age they can still get away with being cheeky and naughty.

"In fact when they get together they can be double trouble but everyone loves them."