Prince George is officially a teenager! 🎉💙 The Prince and Princess of Wales shared a brand-new portrait of their eldest son to celebrate his 13th birthday, capturing the future King looking handsome in a navy suit at Kensington Palace. It's the beginning of an exciting new chapter for George, who will start at Eton College – the alma mater of both his father, Prince William, and uncle Prince Harry – this fall. They grow up so fast! 😭 📸: mattporteous #princegeorge #royalfamily