Grace Patricia Kelly, born on November 12th, 1929, Hahnemann University Hospital, Philadelphia, Pennsylvania, U.S, was a film actress who became Princess of Monaco after marrying Prince Rainier III during April 1956. Kelly began her acting career in 1950, when she was 20, appearing in New York City theatrical productions and more than 40 episodes of live drama productions broadcast during the early 1950s Golden Age of Television.