Her Royal Highness Princess Caroline The Princess of Hanover, Duchess of Brunswick-Lüneburg, Royal Princess of Great Britain and Ireland, Hereditary Princess of Monaco Did you know... 1. She was born HSH Caroline Louise Marguerite Grimaldi, Princess of Monaco on January 23, 1957 at the Prince's Palace , Rocher de Monaco, Monaco. 2. She has been married three times; divorced once, widowed once and currently estranged since 2009 from her third husband Prince Ernst August of Hanover, Duke of Brunswick 3. She received her degree in philosophy from the Sorbonne University and is fluent in French, English, Spanish, German and Italian. Since her mother's sudden death in 1982, the Princess has served as the reigning first lady of Monaco (until her brother's marriage to Charlene Wittstock in 2011) , taking up the numerous causes and charities her mother was associated with including the Princess Grace Foundation and UNICEF. 4. If her younger brother, the reigning HSH Pr...