Princess Stéphanie of Monaco Princess Stéphanie of Monaco Princess Stéphanie of Monaco, Countess of Polignac (Stéphanie Marie Elisabeth Grimaldi; born 1 February 1965) is the youngest child of Rainier III, Prince of Monaco, and the American actress Grace Kelly. She is the younger sister of Albert II, Prince of Monaco, and Caroline, Princess of Hanover. Currently 13th in the line of succession to the Monegasque throne, she has been a singer, swimwear designer and fashion model. Stéphanie was born to Rainier III and Grace Kelly on 1 February 1965 at Prince's Palace in Monaco. She is the youngest of their three children, after Caroline
John B. Kelly Jr. 1929) and Elizabeth Anne (born June 1933 and nicknamed "Lizanne"). Kelly's younger sister Grace would go on to become an Academy Award winning film actress who married Rainier III, Prince of Monaco in 1956. Kelly's nephew is Monaco's current monarch Prince Albert II. The children were raised in a 17-room house on Henry Avenue in East Falls, Philadelphia Kelly served in the United States Navy during World War II. He was stationed in Bainbridge, Maryland. Kelly graduated from the University of Pennsylvania in 1950 and rowed for the varsity team. Kelly represented the United States at the 1948 Summer Olympics