Sienna Miller Shocks with Engagement to Oli Green After Baby Boom

Jun 09 2026

Sienna Miller and Oli Green are officially engaged after welcoming their second child together.

The actress, aged 44, and her partner, aged 29, confirmed their engagement, with E! News breaking the story. Miller was recently seen in Spain sporting a diamond ring on her finger.

This ring is indeed an engagement piece, as reported by the outlet.

Miller's representative has not responded to inquiries regarding the engagement.

The Golden Globe nominee began her relationship with Green in 2022. In a recent interview, she defended their significant age difference.

“The idea of an older woman with a younger man, for example, is still fetishized rather than normalized,” she stated in Grazia. “There’s a disparity there that I would love to see disappear.”

At the time of her comments, Miller was pregnant and later confirmed the arrival of their child two months afterward.

“It’s happened. I have a tiny baby next door,” she told E! News in May. “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 “Anatomy of a Scandal” star has kept details about the newborn under wraps, just as she did when she and Green welcomed a daughter in 2023.

Miller also has a 13-year-old daughter named Marlowe from her previous engagement to Tom Sturridge, which lasted from 2012 to 2015.

After Sturridge, Miller dated businessman Lucas Zwirner, but they never addressed engagement rumors before parting ways in 2020.

In 2022, she made headlines for kissing Cara Delevingne at a bar in New York City, shortly before her relationship with Green began.

Miller admitted in a 2023 podcast episode with Vogue that she initially thought her connection with Green was “absurd” and wouldn’t lead anywhere, but he “worked hard to persuade” her otherwise.

“I would imagine it would be complicated for anyone to get their head around, but there’s been nothing but love and joy,” she explained. “I don’t think you can legislate on matters of the heart. I certainly have never been able to.”

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