Angelina Jolie has unveiled two new tattoos which give the geographical coordinates of the French city where her three-month-old twins were born.
The actress showed off the latest addition to her extensive collection of body art at the New York Film Festival screening of her new film, Changeling.
The two lines of blue script on her upper left arm detail the longitudinal and latitudinal location of Nice, where Knox and Vivienne were born in July.
They are inscribed directly below four similar lines of coordinates which represent the birthplaces of her other four children.
From the top down the script represents adopted son Maddox, born in Cambodia, then Zahara, from Ethiopia, followed by her first biological child Shiloh, who was born in Namibia.
Just above her two new tattoos are the coordinates for adopted son Pax Thien, who is Vietnamese by origin.
Miss Jolie was making her first public appearance with partner Brad Pitt since the birth of her twins.
She told reporters it felt " a little strange" to be back in the limelight and added: "The babies are getting big and healthy and developing personalities".
It is believed that Miss Jolie has had more than 13 tattoos inked on her body.
Before she adopted Maddox, her left bicep bore a Chinese dragon and the name Billy Bob, after her second husband, the actor Billy Bob Thornton.
However, she had this removed by laser. At the time she said: "I'll never be stupid enough to have a man's name tattooed on me again."
The Oscar-winning actress has a discreet M on the palm of her hand in tribute to her mother, Marcheline Bertrand, who died earlier this year.
She also has a Buddhist Pali prayer written in the Khmer script for Maddox as well as a Tennessee Williams quote, "A prayer for the wild at heart kept in cages".
