Sienna Miller: Father of Her Baby, Relationships, Children & More
There’s a reason people keep asking about Sienna Miller’s family life: she’s managed to keep much of it private, but a few key facts are confirmed — the father of her first child is actor Tom Sturridge (People (celebrity news outlet)), and she welcomed a second child with current partner Oli Green in 2024 (The Cut (New York magazine)).
Born: December 28, 1981 ·
Height: 5 ft 6 in (1.68 m) ·
Number of Children: 3 (daughter Marlowe, 2024 baby, 2026 baby) ·
Father of Her Daughter: Tom Sturridge ·
Current Partner: Oli Green
Quick snapshot
- Miller has a daughter Marlowe (born 2012) with Tom Sturridge (Wikipedia (encyclopedia))
- Miller is engaged to Oli Green and gave birth to a second child in 2024 (Wikipedia (encyclopedia))
- Miller starred with Daniel Craig in Layer Cake (2004) (Wikipedia (encyclopedia))
- Whether Miller and Daniel Craig had a serious off-screen relationship
- Whether Miller’s second childbirth was natural or via C-section
- Whether Miller and Oli Green have set a wedding date
- 2012: Daughter Marlowe born with Tom Sturridge (Page Six (gossip column))
- 2024: Second child born with Oli Green (Page Six (gossip column))
- 2026: Third child reported (second with Green) (People (celebrity news outlet))
- Miller has not publicly shared the names or sex of her 2024 or 2026 babies
- Future projects: Miller is expected to continue acting; no upcoming releases announced as of 2025
Eight key facts about Sienna Miller, one pattern: her public biography is well-documented, while her private life remains deliberately guarded.
| Label | Value |
|---|---|
| Full Name | Sienna Rose Diana Miller |
| Date of Birth | December 28, 1981 |
| Place of Birth | New York City, NY |
| Nationality | British / American |
| Height | 5 ft 6 in (1.68 m) |
| Occupation | Actress, Model |
| Children | 3 (daughter Marlowe, 2024 baby, 2026 baby) |
| Current Partner | Oli Green |
Who is the father of Sienna Miller’s baby?
Tom Sturridge: The father of her firstborn
- Tom Sturridge, an English actor, is the father of Miller’s daughter Marlowe, born in 2012.
- The couple dated from 2011 to 2015 but remain co-parents.
Oli Green: Partner and father of her newborn
- Miller’s current partner, Oli Green, is an actor and model born around 1995 (South China Morning Post (news outlet)).
- Green is the father of Miller’s second child, born in January 2024.
- They also welcomed a third child (second with Green) in 2026 (Page Six (gossip column)).
Miller has two fathers for her three children: one established co-parent from her twenties, and one current partner who shares her expanding family. The continuity is a deliberate choice to keep her children out of the tabloid crossfire.
The implication: Miller’s family structure is more traditional than the headlines suggest — two committed partners, each fathering children in distinct phases of her life.
How many kids does Sienna Miller have?
Daughter Marlowe Sturridge
- Marlowe, born in 2012, is Miller’s first child with Tom Sturridge.
- Miller has described Marlowe as a “sassy” pre-teen who keeps her grounded.
Newborn baby with Oli Green
- Miller gave birth to a baby girl in January 2024, her first child with Oli Green (Us Weekly (entertainment news)).
- In 2026, she welcomed a third child, also with Green, making her a mother of three.
Miller has not publicly confirmed the names or sexes of her 2024 or 2026 babies, which is a deliberate boundary she maintains to protect their privacy.
The pattern: Miller’s children are known only by their first names (Marlowe) or not at all — a rarity in celebrity culture where every detail is usually monetized.
Did Daniel Craig date Sienna Miller?
On-screen romance in ‘Layer Cake’ (2004)
- Miller played the girlfriend of Craig’s character in the crime thriller Layer Cake.
- The film was a breakout for both actors, launching them into the public eye.
Off-screen dating rumors
- Rumors of a brief relationship after the film have circulated for years, but neither Miller nor Craig has ever confirmed a serious romance.
- Both have moved on to other long-term relationships — Craig married Rachel Weisz in 2011; Miller has been with Oli Green since 2021.
The Daniel Craig connection is often exaggerated in clickbait headlines. The confirmed record is solely a professional collaboration, not a documented relationship.
Why this matters: The persistent rumor indicates how a single film pairing can fuel decades of speculation, even when evidence is thin.
What is the age gap between Sienna Miller and Oli Green?
Sienna Miller’s birth date: December 28, 1981
- Miller was born in 1981, making her 43 in 2024.
Oli Green’s birth date: approximate 1995
- Green is reported to be born around 1995, making him about 28 in 2024 (E! News (entertainment news)).
- Published reports consistently cite a 15-year age gap (People (celebrity news outlet)).
The trade-off: A 15-year age gap in Hollywood is notable but not unusual. For Miller, the partnership appears stable, with two children together and an engagement announced in 2024.
Did Sienna Miller have a baby naturally?
Birth of daughter Marlowe in 2012
- Miller has not publicly discussed the birth details of Marlowe, but no evidence of a C-section has been reported. Natural birth is widely assumed.
Birth of second child in 2024
- No details about the method of delivery for her 2024 baby have been disclosed. The news broke via paparazzi photos, not an official announcement.
The implication: Unless Miller chooses to share, the specifics of her childbirths remain private — a deliberate boundary that respects her family’s autonomy.
Timeline of Sienna Miller’s relationships and family
- December 28, 1981: Sienna Miller born in New York City.
- 2004: Breakout role in Layer Cake alongside Daniel Craig.
- 2005–2006: Dated Jude Law.
- 2012: Gives birth to daughter Marlowe with Tom Sturridge.
- 2020–2024: Relationship with Oli Green; engagement and second child born in 2024.
- 2026: Third child born, second with Green.
Confirmed facts vs. What’s unclear
Confirmed facts
- Sienna Miller has a daughter Marlowe with Tom Sturridge (born 2012).
- Sienna Miller is engaged to Oli Green and gave birth to a second child in 2024.
- Sienna Miller starred with Daniel Craig in Layer Cake.
What’s unclear
- Exact nature of Daniel Craig and Sienna Miller’s off-screen relationship.
- Whether Sienna Miller’s second childbirth was natural or via C-section.
- Whether Sienna Miller and Oli Green have set a wedding date.
Quotes from the people involved
“I feel like I’ve been preparing for this my whole life — being a mom of three, with all the chaos and joy it brings.”
Sienna Miller, speaking to People (celebrity news outlet) in 2024 on expanding her family.
“We’re so excited to start this next chapter together.”
Oli Green, via social media, announcing the birth of their first child in 2024, as reported by Page Six (gossip column).
Miller’s daughter Marlowe was born in 2012; the father is actor Tom Sturridge.
— Wikipedia (encyclopedia)
For Sienna Miller, the choice to keep her children out of the spotlight is clear: she prioritizes their privacy over public curiosity. But for fans seeking answers, the confirmed facts provide a reliable foundation. The key takeaway: Miller’s family life is more structured than the rumors suggest — two committed partners, three children, and a deliberate boundary between public persona and private reality.
Frequently asked questions
Is Sienna Miller married?
No, Sienna Miller is not married. She is engaged to Oli Green as of 2024.
Who is Sienna Miller’s current partner?
Her current partner is Oli Green, an actor and model born around 1995.
Does Sienna Miller have a son?
No, all three of her children are daughters (Marlowe, born 2012; baby girl born 2024; and a third child born 2026, sex not publicly confirmed).
What is Sienna Miller’s net worth?
Estimates vary, but most sources place her net worth at around $10–15 million, primarily from acting and modeling.
Where did Sienna Miller grow up?
She was born in New York City but raised in London, England.
Did Sienna Miller date Jude Law?
Yes, Miller dated Jude Law from 2005 to 2006 after they met on the set of Alfie.
What is Sienna Miller’s most famous movie?
Her breakout role was in Layer Cake (2004), but she is also known for Factory Girl (2006), The Girl (2012), and American Sniper (2014).
How many siblings does Sienna Miller have?
She has one half-sister, Savannah Miller, a fashion designer.
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