Grace Patricia Kelly (November 12, 1929 – September 14, 1982) was an American actress who, after starring in several significant films in the early to mid-1950s, became Princess of Monaco by marrying Prince Rainier III in April 1956. Kelly was born into a prominent Catholic family in Philadelphia. After graduating from the American Academy of Dramatic Arts in 1949, Kelly began appearing in New York City theatrical productions and television broadcasts. She gained stardom from her performance in John Ford's adventure-romance Mogambo (1953), fo…