Sienna Miller Welcomes Third Child with Partner Oli Green

Sienna Miller has expanded her family to three. The 44-year-old actress announced that she and her partner Oli Green, 29, have recently had a baby.

Miller shared the news with E! News on Monday, May 11, describing the whirlwind of new parenthood. "It's happened," she said. "I have a tiny baby next door." Reflecting on the transition from two children to three, she added: "It feels like stringing sentences together is a bit challenging. I'm on very little sleep, but I'm madly in love with my baby."

The couple is already parents to a daughter they welcomed a few years ago. Miller also has a daughter named Marlowe, born in 2012, from her previous relationship with actor Tom Sturridge.

The actress has kept further details about the newborn private, including the baby's name and sex, as well as the exact birth date.

Green, who has appeared in The Crown, and Miller first met at a party in 2021. The pair made their red carpet debut together in April 2022. Miller has previously discussed their 14-year age difference publicly.