She saw marriage as a way to gain freedom but she also wanted to marry for love. Invited specially by Anne Pollexfen Drake and also her husband lieutenant general George Eliott to come to their London home in Curzon Street, Mayfair, Isabelle did come by boat from Hellevoetsluis to Harwich 7 November 1766 accompanied by her brother Ditie, her maid Doortje and her valet Vitel. Later life Eventually, in 1771, she married the Swiss Charles-Emmanuel de Charrière de Penthaz (1735–1808) born in Colombier, the former private tutor of her brother Willem René abroad from 1763 to 1766. Subsequently, she was known as Isabelle de Charrière. They settled at Le Pontet in Colombier (near Neuchâtel), bought by his grandfather Béat Louis de Muralt, with her father-in-law François (1697–1780) and her two unmarried sisters-in-law Louise (1731–1810) and Henriette (1740–1814). The Canton of Neuchâtel was then ruled by Frederick the Great as prince of Neuchâtel in personal union with Prussia. Neuchâtel enjoyed freedom of religion which resulted in the arrival of many refugees including Jean-Jacques Rousseau, Béat Louis de Muralt and David Wemyss, Lord Elcho. The couple also spent significant amounts of time in Geneva and Paris. De Charrière became rich by modern standards in 1778 by partly inheriting the fortunes of her parents, including for nearly 40% investments in the colonial compagnies such as the Dutch West India Company (WIC), Dutch East India Company (VOC), the British East India Company and the South Sea Company depending on profitable overseas slavery in plantations. According to the opinion of Drieënhuizen and Douze in their publication of 2021 in her letters and in her novel Trois Femmes (Three Women, 1795-1798) De Charrière mentioned slavery uncritically. However, the opposite was the case while she wrote about what she called the horrors (horreurs) in the colonies in a letter (number 1894, of 1798, so she was not indifferent to excesses of slavery, as was detailed by the editor of her correspondence Suzan van Dijk. Within five years after her inheritance De Charrière sold 70% of her colonial investments. Correspondence Isabelle de Charrière kept up an extensive correspondence with numerous people, including intellectuals like David-Louis Constant d'Hermenches, James Boswell, Benjamin Constant and her German translator Ludwig Ferdinand Huber. In 1760, Isabelle met David-Louis Constant d'Hermenches (1722–1785), a married Swiss officer regarded in society as a Don Juan. After much hesitation, Isabelle's need for self-expression overcame her scruples and,