YEUILLOT, D6sir6 (vuh-yo), French explorer, born in Cahors in 1653; died in London, England, in 1732. He was employed till 1684 as inspector-general of the establishment of the West Indian company in the Antilles, Louisiana, and Alabama, and made an exploration of Mississippi river in 1683, penetrating as far as the Missouri, and returning by way of Arkansas. As he was a Protestant, he was forced, after the revocation of the edict of Nantes in 1685, to renounce the land-grant that he had obtained in upper Mississippi and for the settlement of which he was preparing an expedition, and eventually he left France and took refuge in London, where he obtained employment in the office of the secretary of foreign relations. He wrote "Description des cotes de la Louisiane, avec un voyage fair le long du cours du fleuve Mississipi" (2 vols., London, 1708), and "Notice historique sur la Compagnie du Mississipi et sur les etablissements fondes par les Francais en Louisiane" (2 vols., 1714), which was translated into English (1715).