She was born on January 23, 1957 in the Prince's Palace. 2. She is the eldest of Prince Rainier III and Grace Kelly's children. 3. She has two younger siblings: Prince Albert and Princess Stephanie.

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was born in January 1957 - the eldest child of Rainier III, Prince of Monaco and Hollywood actress-turned-princess, Grace Kelly. She wed Prince Ernst August of Hannover in 1999 and the couple have ...