Gaspard-Joseph Chaussegros de Léry (1721–1797)

Gaspard-Joseph Chaussegros de Léry (July 20, 1721 – December 11, 1797), his first name was also sometimes written Joseph-Gaspard. He was a military engineer and a political figure in Lower Canada, who also worked as an engineer, architect, and urban planner in Quebec. One of his most significant contributions to Quebec City was his creation of the fortified wall of the Upper Town, which he developed in 1716 and supervised the construction of in 1745.

During the Seven Years' War he proved himself to be an outstanding officer and was one of only a few colonial officers held in high esteem by the Marquis de Montcalm.

In recognition of his military service, in 1759 he was made a Chevalier of the Order of Saint Louis. In 1763, after the British Conquest of New France, he and his wife, Louise Martel de Brouage, were the first French Canadian couple to be presented to the English Court, drawing the compliment from King George III that if all Canadian ladies resembled Mme de Léry, then he had "indeed made a conquest".