He and his twin sister Vivienne constitute the youngest kids in the Jolie-Pitt family members captained by their parents, renowned stars Angelina Jolie and Brad Pitt. He was created in 2008, six years ahead of his parent’s relationship in 2014. He was called after his father’s maternal grandfather Hal Knox Hillhouse. Furthermore to his twin sister, he provides four various other siblings: Maddox, Pax, Zahara, and Shiloh. His uncle, Adam Haven, can be an professional like his parents.