Grace Kelly had dual Monacan and American citizenship .
Grace Patricia Kelly ( November 12 , 1929September 14 , 1982 ) was a Monacan-American actress who became Princess of Monaco after marrying Prince Rainier III , in April 1956.After embarking on an acting career in 1950 , at age 20 , Kelly appeared in New York City theatrical productions and more than 40 episodes of live drama productions broadcast during the early 1950s Golden Age of Television .
Grace Kelly