Sienna Miller gives birth

Sienna Miller gives birth Sienna Miller has confirmed the arrival of her third child. 11 May 2026 Sienna Miller has given birth to her third child. Sienna Miller has given birth The 44-year-old actress - who has Marlowe, 13, with former partner Tom Sturridge and a two-year-old daughter whose name hasn't been publicly revealed with boyfriend Oli Green - announced late last year that she was expecting another baby and while promoting her latest project, Jack Ryan: Ghost War, she revealed she has welcomed the tot into the world, though she didn't give any further details about the baby.