David-Louis Constant de Rebecque

David-Louis, Baron de Constant de Rebecque, seigneur d'Hermenches and Villars-Mendraz, a.k.a. David-Louis Constant d'Hermenches (17 November 1722 in Lausanne – 25 February 1785 in Paris) was a colonel and commandant of a Swiss regiment in the Dutch Republic and Maréchal de camp in French service with Swiss regiments. He is also known for his contact with Voltaire and his correspondence with Isabelle de Charrière. Early life He was the eldest son of Samuel Constant de Rebecque (1676–1756) and his wife, Rose Suzanne née de Saussure de Bercher (1698–1782). His father became member of the Dutch States Army in 1699. Later he started a small Swiss regiment in the Dutch States Army. He bought the seignories Hermenches in 1725 and Villars-Mendraz in 1753. Career