Sienna Miller’s Kids: A Family Guide to Her Oldest Daughter Marlowe & More
Marlowe Sturridge knows how to make an entrance on a red carpet, just like her mom, Sienna Miller. The 44-year-old actress stepped out for the London premiere of her new HBO series, War, on September 16, and 14-year-old Marlowe was by her side to celebrate.
Miller shares Marlowe with her ex-boyfriend, actor Tom Sturridge, whom she split from in 2015. While Marlowe was growing up, the former couple kept her away from the spotlight, making her latest public appearance a rare one. Keep reading for all the details about Miller’s family, including her kids with fiancé Oli Green.
Marlowe Sturridge
Marlowe was born in 2012, one year after her parents started dating. Miller has opened up about being a mother to Marlowe on occasion, telling People in 2020 that it’s her “most loving, intense relationship.” She explained, “She knows me, I know her. She’s really stubborn, which is very like me. I see her as her own person, but I also see genetic things. She’s heaven, my kid.”
View this post on Instagram
In 2024, Miller said her daughter is “a little fashion monster.” A year earlier, Marlowe and her mom sat front row at Proenza Schouler’s New York Fashion Week show. “She’s so stylish. And very critical. She’s like a young Anna Wintour in her total disdain for some of the things I wear,” Miller explained to The Guardian. “In New York, she thought I was mortifying. She wishes I would brush my hair. Although now that we’re back in England she’s starting to appreciate the undone-ness.”
Does Sienna Miller have kids with Oli Green?
Miller has been in a relationship with the 29-year-old actor since at least 2022, and they made their red carpet couple debut at that year’s Vanity Fair Oscar Party. They had their first child together, a daughter, in January 2024. In May 2026, their family grew by one more. Miller revealed in an interview with E! News that they had welcomed their second child.
View this post on Instagram
“It feels like stringing sentences together is a bit challenging,” Miller said at the time. “I’m on very little sleep, but I’m madly in love with my baby.”
The actress also opened up about being a new mother of three on The Tonight Show with Jimmy Fallon on May 14. “I would have said the teenage girl would be harder to juggle until the transatlantic flight I took yesterday with the toddler and the newborn,” she joked. “The toddler now wins hands down. It was an absolute disaster. There’s no negotiating.”
In 2024, Miller told Vogue that she felt more prepared psychologically for motherhood the second time around. “And the reality was quite, it was quite a shock,” she said of giving birth to Marlowe. “I was 29 when I got pregnant, and I had her at 30, and I just hadn’t given it the thought that… I guess you can’t prepare for it. In my mind, this is gonna be the easiest, coziest, sweetest, ’cause I’ve completely forgotten the reality of having a newborn baby.”
Weeks after the arrival of her third baby, Miller was pictured wearing a diamond ring. E! News confirmed it was an engagement ring.
She’s spoken about her 14-year age gap with Green before. Miller explained to Vogue, “Me being the older woman in a partnership with a younger person, or being pregnant over 40 – and that that’s ‘irresponsible’ and ‘the poor child’ – it’s such double standards, and I think it’s so unquestioned in people’s minds. It’s just a trite, easy target. But it’s absurd. I was very fortunate. I wasn’t necessarily trying to get pregnant. This happened as a total surprise and, biologically, was something that my body was able to do.”
