Sweden’s Princess Leonore steals the show at her sister’s royal christening

England’s Princess Charlotte may be only 3 years old, but she has already won over the world with her sweet (and rather queenlike) waves and the occasional somersault. Now it looks as if we’ve found her the perfect playmate: Sweden’s Princess Leonore. The 4-year-old daughter of Princess Madeleine and her British-American husband, Christopher O’Neill, is getting some internet fame after video footage from her baby sister’s June 8 christening went viral.