THE RUNDOWNKate Middleton and Prince William marked their 15th wedding anniversary on April 29.The couple shared a new family photo with Prince George, Princess Charlotte, and Prince Louis.The portrait offers a more relaxed, candid look at the family.Kate Middleton and Prince William are marking a major milestone in their marriage with a new family portrait.On April 29, the Prince and Princess of Wales shared a photo on their official Instagram account to celebrate their 15th wedding anniversary. The image shows the couple lying on the grass alongside their three children—Prince George, 12, Princess Charlotte, 10, and Prince Louis, 8—in a relaxed outdoor setting. The family is dressed casually in warm-weather clothing.The caption simply read: “Celebrating 15 years of marriage ❤️.”View full post on InstagramThe photo also includes the family’s black cocker spaniel, Orla, as William reaches over to pet the dog. A second dog, believed to be a newer addition to the household, is visible near William’s head. The portrait was taken by photographer Matt Porteous during a recent family trip to Cornwall, continuing his ongoing work with the Wales family on personal milestones, including Prince Louis’s recent birthday portrait.The anniversary marks 15 years since William and Kate married at Westminster Abbey on April 29, 2011, following their engagement the year prior. The couple first met while attending the University of St. Andrews in Scotland.The new image offers a more candid glimpse into their family dynamic and comes less than a week after the couple shared a portrait to mark Louis’s eighth birthday.