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
Rainier III, Prince of Monaco Onassis, who took control of the Société des Bains de Mer (SBM) and envisioned Monaco as solely a gambling resort. Prince Rainier regained control of SBM in 1964, effectively ensuring that his vision of Monaco would be implemented. In addition, the Societé Monégasque de Banques et de Métaux Précieux, a bank which held a significant amount of Monaco's capital, was bankrupted by its investments in a media company in 1955, leading to the resignation of Monaco's cabinet. As Prince of Monaco, Rainier was also responsible for the principality's new constitution in 1962 which significantly reduced the power of the sovereign.