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
Louis II, Prince of Monaco Dommanget (1900–91), a French film actress and former wife of actor André Brulé. Absent from Monaco during most of the final years of his reign, he and his wife lived at Marchais, the family estate near Paris. Prince Louis II died in 1949 in the Prince's Palace and is buried at the Saint Nicholas Cathedral in Monte Carlo, Monaco. His widow, Ghislaine, Dowager Princess of Monaco, died on 30 April 1991 in Paris, where she was interred in the Passy Cemetery. Hereditary Princess Charlotte ceded her succession rights to her son, Rainier, in 1944, at which time he became Hereditary