Kate Winslet welcomes a baby boy with Ned Rocknroll

Kate Winslet and husband Ned Rocknroll have welcomed their first child together, a baby boy.

The child, Winslet’s third, was born Saturday in Britain, the actress’ rep confirmed to People. While no name has been revealed, the tot clocked in at 9 pounds, according to the Mail Online, and mom and baby are doing well.

The couple, who got married last December, announced in June that they were expecting. They’re “thrilled to bits,” the Oscar winner’s rep told the Mail.

Winslet has a 13-year-old daughter, Mia, with first husband Jim Threapleton and a 9-year-old son, Joe, with second husband Sam Mendes.

Rocknroll is a nephew of Virgin honcho Richard Branson and reportedly works in Virgin’s space-travel branch. The two met on Branson’s private Necker Island in 2011.

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PHOTOS: Celebrity portraits by The Times