Vivienne And Knox Jolie Pitt 2024 Dates. Her youngest children, twins vivienne marcheline and knox león, are officially 16 years old, if you can believe it. Knox and his twin sister, vivienne, turned 16 on july 12.

At the time, he and two of. Her youngest children, twins vivienne marcheline and knox león, are officially 16 years old, if you can believe it.