Royals Royal Resemblance! Princess Charlotte Looks Just Like Princess Diana's Niece in Throwback Snap After Lady Kitty Spencer shared a sweet photo of herself as a child, royal fans quickly pointed out how much Princess Charlotte looks like her By Maria Pasquini Maria Pasquini Maria Pasquini is the staff editor for human interest’s digital vertical at PEOPLE. She has been working at PEOPLE since 2017. People Editorial Guidelines Published on November 25, 2018 05:59PM EST It runs in the family! On Thursday, Lady Kitty Spencer, Princess Diana’s niece, shared a sweet throwback photo of herself as a child — and royal fans quickly pointed out the strong resemblance between her and Princess Charlotte. “First day of school,” the socialite, 27, captioned the image. Making the resemblance even more striking, Lady Kitty’s childhood hairstyle appeared similar to Charlotte’s look on her very first day of preschool earlier this year. The pair also wore similar pairs of shoes on their feet. Can’t get enough of PEOPLE’s Royals coverage? Sign up for our newsletter to get the latest updates on Kate Middleton, Meghan Markle and more! Kitty Spencer/Instagram; Duchess of Cambridge/Getty Images Countless fans quickly commented on the photo, with many writing that they actually thought the photo was of Charlotte, 3, at first! “Princess Charlotte looks like you,” wrote one fan, while another added, “I also thought it was Charlotte!” This Is Why We Won’t See Prince George and Princess Charlotte’s Back-to-School Photos This Year Although both Charlotte and her older brother Prince George went back to school this September, their parents didn’t share any photos from their first days this time around. Insiders previously told PEOPLE that there won’t be pictures of the royal children every year. Prince William and Kate Middleton have always made a point of treating school as a private area, so that George, 5, and Charlotte can grow up in as pressure-free an atmosphere as possible. The Duchess of Cambridge/KENSINGTON PALACE/HANDOUT/EPA-EFE/Shutterstock Will and Kate released photos of George’s first day of school last year because it was a significant milestone: his first day at Thomas’s Battersea. Likewise, the royal parents shared photos of Charlotte’s very first day of preschool earlier this year, when she officially started at Willcocks Nursery School in January. Charlotte and George were last seen with their younger brother Prince Louis, 7 months, in two new pictures released by the royal family earlier this month to honor the 70th birthday of Prince Charles on Nov. 14. Chris Jackson/Clarence House/Getty In the new photos, Louis, who was born April 23, is held by his mom as George sits on his grandpa Charles’ knee. Meanwhile, Charlotte and Camilla, Duchess of Cornwall, appear to focus on something behind photographer Chris Jackson’s camera. Also featured in the photos, which were taken in September outside Clarence House: Meghan Markle and Prince Harry. Meghan (in Givenchy, her wedding dress designer) was pregnant at the time, but the news hadn’t been made public.