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
Honoré V, Prince of Monaco Although Honoré V never married, he did have a son. Louis Gabriel Oscar Grimaldi was born in Paris on 9 June 1814 and died in Saint-Germain-en-Laye on 15 July 1894. Louis Gabriel Oscar Grimaldi was legitimized, however it was his younger brother, Prince Florestan, who succeeded him. Honoré V, Prince of Monaco Honoré V (13 May/14 May 1778 in Paris – 2 October 1841 in Paris) was Prince of Monaco and Duke of Valentinois. He was born Honoré Gabriel Grimaldi, the first son of Honoré IV of Monaco and Louise d'Aumont. A professor of the period, one Victor de la