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
Leopold III, Prince of Lippe Leopold III, Prince of Lippe Leopold III of Lippe (Paul Friedrich Emil Leopold; 1 September 1821 – 8 December 1875) was the sovereign of the Principality of Lippe reigning from 1851 until his death. Leopold III was born in Detmold the eldest child of Leopold II, the reigning prince of Lippe and his consort Princess Emilie of Schwarzburg-Sondershausen (1800–1867). Being the heir apparent to the throne from birth he had the title Hereditary Prince. He succeeded as Prince of Lippe on 1 January 1851 following the death of his father. A year after succeeding to the throne Leopold was married