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 philatelic collectors club Club de Monte-Carlo de l'Élite de la Philatélie was established under his patronage in 1999; the club has its headquarters at the museum, with its membership restricted to institutions and one hundred prestigious collectors. Rainier organized exhibitions of rare and exceptional postage stamps and letters with the club's members. Throughout his reign, Rainier surveyed all the process of creation of Monaco stamps. He liked stamps printed in intaglio and the art of engravers Henri Cheffer and Czesław Słania. Rainier's car collection was opened to the public as the Monaco Top Cars Collection in Fontvieille. Prince Rainier smoked