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
National Day of Monaco The birth of Albert II's children has been celebrated in a similar fashion as a national day and 7 January 2015 was declared a public holiday (one-time only). National Day of Monaco The National Day of Monaco (, literally Prince's holiday) also known as The Sovereign Prince's Day is currently annually celebrated on 19 November. The date of the National day is traditionally determined by the reigning Prince. The previous Princes often chose the day of the saint they were named after. For instance the late Prince Rainier III chose 19 November, the day that celebrates St. Rainier. When Prince