Sienna Miller, 44, welcomes her third child: ‘Madly in love’

Congratulations are in order for Sienna Miller who has quietly welcomed her third child. The actress, 44, confirmed the heartwarming news in an interview published on 11 May, gushing that she is “madly in love” with the newest addition to her growing family.

“It’s happened. I have a tiny baby next door,” Sienna recently told E! News she’s had her second child with her partner, actor Oli Green, 29. 

“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 did not disclose the sex or name of her newborn child.

Sienna shares an older daughter with Oli, who was born in 2024 and whose name they have not disclosed. She’s also a mum to teenager Marlowe, 13, who she shares with ex Tom Sturridge. The actress was in a relationship with Tom from around 2011 to 2015.

Memorable pregnancy announcement 

Sienna revealed she was expecting again when she arrived at The Fashion Awards last December in a sheer dress that showed off a noticeable baby bump. The actress posed for photos with her boyfriend on the red carpet at the Royal Albert Hall in a see-through dress made of white tulle with a bustier-like neckline. 

A few months after Sienna’s announcement, the star’s 47-year-old sister Savannah also revealed she’s pregnant with her “miracle baby”. 

“To be doing it all over again at the same time as my sister is the most delicious cherry on the icing on the cake,” Savannah wrote on Instagram, sharing that her baby is due in August.

Pregnancy journey 

Sienna shared an update on her pregnancy journey in March with a photo of her growing baby bump posted on Instagram. Before announcing she was expecting, the actress candidly opened up in April 2022 about entering her ’40s and feeling pressure over whether to have more children. 

The star told Elle UK at the time she had thought: “Should I have more, and why haven’t I, and all of that, which is a really loud noise.”

She continued: “Biology is incredibly cruel on women in that decade – that’s the headline, or it certainly was for me. Then I got to 40 and I froze some eggs. Having been really focused on the need to have another baby, I’m just like, if it happens, it happens. That kind of existential threat has dissipated.”