Watch: William and Kate release family video to mark 10th wedding anniversary
A smiling Princess Charlotte looking relaxed and happy has been photographed by her mother in a new image shared as she turns six years old.
The new picture was shared by Kensington Palace the day before her birthday, but in a departure from tradition, won't be posted on their social media pages.
Prince William, as president of the FA, has lent his support to a boycott of social media until companies take stronger action against racism and abuse on online platforms.
So the image is unlikely to appear on the Kensington Royal accounts before the end of the four day boycott.
In the new picture, Charlotte is wearing a blue and pink floral dress, and has her hair loose around her shoulders.
Although she has been photographed in recent months, out at the pantomime with her family in December, her hair has usually been styled back, away from her face.
The young princess bears a striking resemblance to her father at the same age.
She grins at the camera, which is being operated by Kate, a keen amateur photographer who has turned her passion into a key part of how she and Prince William share their lives with royal watchers.
Kate recently released a photograph of their youngest son Prince Louis before St George's Day, which was his third birthday.
The relaxed portrait of Charlotte, which was taken over the weekend in Norfolk, differs to her fifth birthday picture, where she was shown helping to distribute food parcels around the Sandringham Estate.
Charlotte was born on 2 May 2015, in the Lindo Wing at St Mary's in Paddington, and was christened Charlotte Elizabeth Diana, after her great-grandmother and late grandmother.
She attends Thomas's Battersea in London, over the river from the family home at Kensington Palace.
Prince George, who is seven, is at the same school as her.
Earlier this week the Cambridges shared a video of the five of them enjoying the countryside in Norfolk, showing them taking a trip to the beach and toasting marshmallows around an open fire.
Kate has previously spoken about her love of the outdoors as a child, and how she wants to encourage her children to have the same love.
Speaking to Giovanna Fletcher on the Happy Mum, Happy Baby podcast last year, Kate said: "The simple things resonate with me the most. Life now is so busy, so distracting, the simple things like watching a fire on a rainy day, I remember that from my childhood. Going for a walk, that’s really what I try to do with my children now."
She said she was happiest when "I am with my family, out in the countryside and we are all filthy dirty".
Watch: New Photos of Prince William and Kate for 10th Wedding Anniversary