Pax

Optimus Prime's real name was Orion Pax before he became the leader of the Autobots from the Transformers series.

Used as a masculine name on two characters in the Red Rising book series by Pierce Brown.

Pax Thien Jolie-Pitt, whose birth name was Pham Quang Sang, born on November 29, 2003, was originally from Vietnam. He was raised in an orphanage called Tam Binh Orphan Center. By coincidence, Angelina Jolie requested a healthy young boy, considering most of the orphans are HIV Positive, and Heidi Gonzalez was looking for a home for Pax. On March 2007, he was declared as a Jolie-Pitt and his name was changed to Pax Thien, which means "peaceful sky." Pax's biological mother, Pham Thu Dung, was a heroin-addict and ran away two days after she gave birth to him, after finding out Pax had a liver problem, and presented with a £15 medical bill. Pax is younger brother to Maddox and older brother to Zahara Marley, Shiloh Nouvel, Knox Leon and Vivienne Marcheline. Angelina Jolie recently announced Pax and Zahara will have short appearances in Maleficent, along with Vivienne, who plays young Princess Aurora. Pax is very wild, as Jolie claimed, and likes stuffed monkeys. He hates the paparazzi and gets in trouble a lot.

Actors Angelina Jolie and Brad Pitt have a son Pax Thien Vojtka-Pitt, born 29th November, 2003, Ho Chi Minh City, Viêt Nam. His original name is Quang Sang Pham.