DUQUESNE DE MENNEVILLE, Marquis, governor of New France, born in France early in the 18th century. He was a grand nephew of Abraham Duquesne, the great French mariner, early entered the royal marine service, and became a captain. In 1752 he was appointed governor of New France, having been recommended to the office by Gallissoniere. He introduced great reforms into the colony, placed the colonial troops on a par with the European by constant drilling and study, erected forts in the far west, and resisted the encroachments of the English and colonial troops. Among the forts so erected was the one bearing his name on the present site of Pittsburgh. It was during his administration that the assassination of Jumonville took place, and also the brilliant victory over the English at Coulon de Villiers in 1756. Duquesne solicited his recall, and departed for France in 1755.