Sienna Miller recently shared how her older kids are adjusting to being siblings to her new baby boy.
Speaking at the premiere of her new movie, Madden on Wednesday, November 4, 2026, the 44-year-old revealed that her two older children are already in love with their new sibling.
“He’s a boy, and he’s the first boy, so everybody worships him,” she said.
The actress noted that her eldest daughter, Marlowe Sturridge is “obsessed” after she gained a new sibling.
Sienna Miller Praised Her New Baby Boy as ‘Gorgeous’
The War actress gushed about her new baby boy, whom she welcomed earlier this year with her fiancé, Oli Green.
“He’s incredibly chilled and gorgeous, and we’re so lucky,” Miller said of her youngest.
While her two older kids are excited to have a brother, the actress revealed that they are not taking over diaper duties, as she considers the task part of the joys of parenting.
“With pleasure for me, it’s the honor of my life to change my son’s diaper,” the American Sniper actress said, adding, “There are enough of us that are willing.”
Further in the interview, the actress also talked about how she is looking forward to having a cozy time this holiday season.
“Cozying up with little people at this time of year is heaven,” she added.
The Anatomy of a Scandal alum also remarked, “I am not working after this, so I just get to be at home and snuggle up.”
Sienna Miller Originally Thought Pregnancy After 40 ‘Wouldn’t Happen’ For Her
In a previous interview, Miller revealed it was “such a surprise” for her to give birth to two children after the age of 40. She admitted that she had thought it “wouldn’t happen.”
“I had thought, by the time I was 40, that it wouldn’t happen,” she explained. “That I’d have my one baby and I kind of made peace with it.”
She added, “It was such a surprise, and it was such a bonus that I was just euphoric. I felt existentially relieved.”
Who Are Sienna Miller’s Kids?
Miller is a mom to two daughters and one boy. She became a mom for the first time when she welcomed her daughter, Marlowe with her ex, Tom Sturridge in July 2012.
She welcomed her second daughter, with her then-boyfriend, Green in January 2024.
Notably, in December 2025, the actress revealed she was expecting her third baby when she appeared at the Fashion Awards in London. Miller announced the arrival of her third child in May 2026.
