Grace Kelly was an American actress who became Princess of Monaco after marrying Prince Rainier III in 1956. They had three children together: Caroline, Albert, and Stéphanie. Kelly began her acting career in 1953 and won an Academy Award for her role in Mogambo. She retired from acting at age 26 when she became Princess of Monaco. Tragically, Kelly died in 1982 at age 52 after suffering a stroke while driving with her daughter Stéphanie.