Britain's royal family released a photograph on Saturday of a smiling Princess Charlotte, one of Queen Elizabeth's great-grandchildren, the day before the princess celebrates her sixth birthday. Charlotte is fourth in line to the British throne and is the only daughter of Prince William, the queen's grandson, and his wife Kate, Duchess of Cambridge. <strong>Scroll through the gallery below of Princess Charlotte over the years:</strong> In the picture, Charlotte is shown wearing a blue dress with a pink floral pattern and pink buttons, and she stands with her arms stretched out and her hair falling over her shoulders, smiling at the camera. The dress is by London designer Rachel Riley who has dressed the young royal and her siblings in the past. <a href="https://www.thenationalnews.com/lifestyle/buckingham-palace-releases-new-photos-of-late-prince-philip-taken-by-kate-middleton-1.1204031">The photograph was taken by </a>the Duchess of Cambridge, a keen amateur photographer and a patron of The Royal Photographic Society, on Saturday in Norfolk, eastern England, where the family currently live. "Wishing Princess Charlotte a very happy sixth birthday today," the royal family posted on its social media pages, along with the image. It's not yet clear how Princess Charlotte will celebrate her birthday. In 2020, <a href="https://www.thenationalnews.com/lifestyle/family/princess-charlotte-turns-five-kensington-palace-releases-new-images-of-the-young-royal-1.1013727" target="_blank">on her fifth birthday</a>, the Duke and Duchess of Cambridge shared pictures of Charlotte helping pack and deliver food parcels and homemade pasta to locals amid the Covid-19 pandemic. The Duke and Duchess of Cambridge on Friday released a video <a href="https://www.thenationalnews.com/lifestyle/prince-william-and-kate-middleton-release-wholesome-family-video-to-mark-10th-anniversary-1.1213964" target="_blank">to mark a decade since their wedding</a>. The highly stylised clip, by London filmmaker Will Warr, is set against the sound of gentle guitar strings, and showed the royals with their three children walking across a windswept beach, running through their expansive garden and toasting marshmallows over an open fire. “Thank you to everyone for the kind messages on our wedding anniversary,” they wrote in a message accompanying the footage. “We are enormously grateful for the 10 years of support we have received in our lives as a family. W & C.” The couple married in 2011 after an eight-year relationship that began while they were at university. Charlotte was born in London on May 2, 2015, and is William and Kate's second child. Charlotte's elder brother, Prince George, was born in July 2013 and her younger brother, Prince Louis, was born in April 2018. <strong>Scroll through the gallery below to see more of Prince William and the Duchess of Cambridge through the years: </strong> _____________ <strong>Read more:</strong> _____________