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
Rainier III, Prince of Monaco in Monaco were on 18 April 1956 (civil) and 19 April 1956 (religious). Their children are: In 1979, Prince Rainier made his acting debut alongside his wife Grace in a 33-minute independent film called "Rearranged", produced in Monaco. According to co-star Edward Meeks, after premiering it in Monaco, Grace showed it to ABC TV executives in New York in 1982, who expressed interest if extra scenes were shot to make it an hour long. However, Grace died in a car crash caused by a stroke in 1982, making it impossible to expand the film for American release. Rainier then may