Sienna Miller Gives Birth To Baby Girl

Sienna Miller and her fiance' Tom Sturridege welcomed their first child over the weekend in London, a baby girl.

It was first reported Sunday by US Weekly that the "GI Joe: Rise of Cobra" actress delivered the baby on Saturday.

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After remaining silent about her pregnancy for several months the actress, 30, confirmed to British Vogue magazine in April. "Even though I'm under strict instructions not to say anything as it would completely defeat the point of everything I've tried to achieve in the last eight years," the resolutely private Miller (who famously dated Jude Law) expressed to the mag. "I'm feeling fine...It's all progressing nicely and it's very exciting."

The British couple is engaged, and have been dating for over a year. Miller did not go public with her pregnancy and it was her stepmother, interior designer Kelly Hoppen, who revealed Sienna's secret in January. Hoppen told London's Evening Standard: "Sienna is definitely not engaged or getting married, and she is pregnant."

Miller later stepped out in public with a diamond engagement ring in mid-February. 

In May, the couple were photographed while they were away on vacation in Italy. They alsdo attended "Twilight" star Robert Pattinson's 26th birthday at Gordon Ramsey's restaurant in London, England.

Prior to her relationship with Sturrdige, Sienna had a very public on-and-off relationship with British actor Jude Law, her co-star in "Alfie". When the couple was engaged, Law issued a public apology to Miller for having an affair with the nanny of his children.

In 2008, Miller had an affair with married actor Balthazar Getty of the ABC hit show "Brothers and Sisters". Miller later sued two British newspapers over the publication of photos showing her and Getty together.

Sienna launched a clothing line in 2007 with her sister Savannah, Twenty8Twelve. In February they announced they will no longer work on the line. Sienna told British Vogue recently about the joint venture, "My sister is an amazing designer - she's working on her new label at the moment." Sienna told us. "In fact she's designing in my attic as we speak. I just can't wait to wear all of the pieces."