How old was Keira Knightley in The Duchess?

There’s something captivating about discovering a celebrity’s age during a defining role. It can shift our perspective on their journey and achievements. Let’s take a closer look at that intriguing number.

While The Duchess was being made, Keira Knightley was:

22 years old

This is the verified age of the celebrity based on our calculation.

We calculated the age by referencing the first day of the year The Duchess was launched:

January 1, 2008

And the known birth date of Keira Knightley:

March 26, 1985

Because movies often premiere within a year of starting production, Keira Knightley might have been either one year younger or older while filming some scenes.