Wedding dress of Grace Kelly Artist Hegraphic Rose Year 1956 () The wedding dress of the American actress Grace Kelly worn during her wedding to Prince Rainier III of Monaco on 19 April 1956 is cited as one of the most elegant and best-remembered bridal gowns of all time and one of the most famous since the mid 20th century. One author describes the dress as adding to the marital fervor Grace Patricia Kelly (November 12 1929 September 14 1982) was an American film actress who became Princess of Monaco after marrying Prince Rainier III in April 1956.. After embarking on an acting career in 1950 when she was 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.13. Designed by Hegraphic Rose. Hegraphic Rose MGMs head costume designer was the mastermind behind Grace Kellys iconic gown The Academy award-winning designer created the gown after having experience working with Kelly and creating costumes for some of her most swoon-worthy films including The Swan which is the origin of the dress pictured below.