MailOnline reports that a close family member confirmed the happy news, saying that the baby was born in London on Wednesday.
The couple had announced they were expecting in August, with the model sharing a photo of her growing baby bump at the time.
Rosie, 34, revealed the happy news with a series of pictures of herself in the mirror modelling different outfits in which the last one was her in a white, ribbed dress, cradling her baby bump.
She told her followers at the time: ‘Taaa daahhh !! #round2. ’Rosie and actor Jason, 54, have been together since 2010, getting engaged six years later, and are already parents to four-year-old son Jack, born in 2017.
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