Caroline, Princess of Hanover Caroline, Princess of Hanover Caroline, Princess of Hanover (Caroline Louise Marguerite Grimaldi; born 23 January 1957), is the eldest child of Rainier III, Prince of Monaco, and the American actress Grace Kelly. She is the elder sister of Prince Albert II and Princess Stéphanie. Until the births of her niece and nephew, Princess Gabriella and Prince Jacques, in December 2014 she had been heir presumptive to the throne of Monaco since 2005, a position which she previously held from 1957 to 1958. Caroline is married to Ernst August, Prince of Hanover (born 1954), the heir to the former throne of
Grace Kelly filmography year, she portrayed a long-suffering wife of an alcoholic actor played by Bing Crosby in "The Country Girl" (1954) for which Kelly received the Academy Award for Best Actress, and the Golden Globe Award for Best Actress in a Motion Picture – Drama in 1955. She reteamed with Hitchcock on the romantic thriller "To Catch a Thief" (1955) opposite Cary Grant. In 1956, she appeared in the romantic comedy "The Swan", and the musical comedy "High Society". Later that year, the 26-year-old Kelly retired from acting to marry Rainier III, Prince of Monaco, and become the Princess of Monaco. Grace