Oscar winner Kate Winslet and husband Ned Rocknroll (born Ned Smith) welcomed a baby boy on Dec. 7 at Sussex County Hospital in the United Kingdom, her publicist confirmed to TODAY.
The boy is Winslet's third child and the first for her husband.
Winslet has a daughter Mia, 13, and a son Joe, 9, from her previous marriages. She wed Rocknroll, a nephew of Virgin Group founder Richard Branson, in December 2012.
"Mother and baby are doing great," added Winslet's publicist. She did not release the baby's name.