What happens when Draco Malfoys sister; Lyra, has a daughter that's a spitting image of him? Caroline Riddle was born to Lyra Malfoy and Tom Riddle's nephew Mateo Riddle. Shortly after Caroline is born Harry and Ginny welcome their daughter Sara potter into the wizarding world. Caroline instantly becomes best friends with her uncle Tom's biggest nemesis's daughter Sara Potter their first year attending Hogwarts together.