Get ready for some very cute 'first day' photos - Princess Charlotte is heading to big school.

The four-year-old is set to attend Thomas's School in Battersea, London in September, just like her older brother George. The news was announced by a number of royal reporters, including Omid Scobie.

"Princess Charlotte will join Prince George at Thomas's Battersea School from September this year, Kensington Palace have announced," he tweeted. "Principal Simon O’Malley says: 'We greatly look forward to welcoming her and all of our new pupils to the school in September.'"

Thomas's is a mixed private school a short distance from Kensington Palace where George and Charlotte live. According to The Good Schools Guide, Thomas's is "a big, busy, slightly chaotic school for cosmopolitan parents who want their children to have the best English education money can buy." Class sizes average at around 20 at the selective school, with pupils from a variety of nationalities who among them speak 19 different languages at home. Subjects at Thomas's include Maths, Science, History, Religious studies, Computing and even Drama, Ballet and French. Among Charlotte's schoolmates there will be her distant cousin Maud Windsor. Maud is the daughter of Lord Frederick Windsor, whose father Prince Michael of Kent is Queen Elizabeth's first cousin. She and Charlotte were flower girls together at Princess Eugenie's wedding last October.