Angelina Jolie and Brad Pitt's twins have celebrated their first birthday with a

Angelina Jolie and Brad Pitt's twins Knox Leon and Vivienne Marcheline have celebrated their first birthday with a family party.

The twins were born in Nice, France in July last year and have rarely been seen in public since their birth.

It is claimed Brad, 45, and Angelina, 33, held a party for the twins at their home in Los Angeles with their older siblings Maddox, seven, Pax, five, Zahara, four, and Shiloh, three.

Brad's parents Bill and Jane Pitt flew in from their home in Springfield for the party and the older children reportedly baked two cakes for the twins.

(Edit:Ruby)