Vivienne Jolie-Pitt
Vivienne Jolie Pitt is the twin sister of Knox. She is also currently twelve years old and has the same estimated value (100 million dollars) as her brother. With parents like Angelina Jolie and Brad Pitt, Vivienne has been set up for life before even reaching her teen years. The first photo of these twins was sold for around 1 million dollars, making it the most expensive child photo ever.
