>> Read more trending stories  

Knightley and her husband James Righton have been married since May 2013.

There had been leaks over the past 24 hours that she had given birth in secret, but E! News has confirmed the new arrival with multiple sources.

About the Author

Featured

Prosecutor Skandalakis has previously suggested that pursuing criminal charges against President Donald Trump may not be feasible until after he leaves office in 2029. (Craig Hudson/Politico/Bloomberg via Getty Images)

Credit: Bloomberg via Getty Images