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
Honoré III, Prince of Monaco of Maria Clementina Sobieski. The marriage never materialised and as such, in 1751, he married Maria Caterina Brignole (d. 1813). The couple had two children; Honoré IV, Prince of Monaco and Joseph Grimaldi (10 September 1763 – 28 June 1816) before divorcing in 1770, and Marie-Catherine married the Prince de Condé in 1798. Honoré III, Prince of Monaco Prince Honoré III, Prince of Monaco (10 November 1720 – 21 March 1795) ruled as Prince of Monaco and was Duke of Valentinois from 1731 to 1793. Honoré was the son of Louise Hippolyte, Princess of Monaco and her husband Prince Jacques.