Queen's cousin Prince Michael of Kent becomes grandfather Lord Frederick Windsor, son of Prince Michael of Kent, and wife actress Sophie Winkleman at the Queens Diamond Jubilee. BRITAIN'S Prince and Princess Michael of Kent have become grandparents for the first time after their son's wife, actress Sophie Winkleman, gave birth to a baby girl. Lord Frederick Windsor was at his wife's side during the birth, which took place at a hospital in Los Angeles, where the couple are based. In a statement Prince and Princess Michael said: "Lady Frederick Windsor was yesterday safely delivered of a baby girl at Ronald Reagan UCLA Medical Centre in Los Angeles. The weight of the baby was 7lb (3.2kgs). Lord Frederick Windsor was present at the birth. Prince and Princess Michael of Kent's family and Sophie's family have been informed and are delighted with the news. The royal baby was named Maud Elizabeth Daphne Marina. The baby girl is 42nd in line to the throne. Prince Michael of Kent is the Queen's first cousin. Prince Michael's father was a younger brother of the late King George VI, the father of the Queen. Winkleman, 33, who has starred in the TV sitcoms Peep Show and Two And A Half Men, married Lord Frederick, 34, in September 2009 at Hampton Court. Britain' Queen Elizabeth II, centre, with Prince Michael of Kent, and Princess Michael of Kent celebrate after the horse Ouija Board won the Prince of Wales Stakes in 2006. Winkleman and Lord Frederick have named their new baby daughter Maud Elizabeth Daphne Marina.