Pierre de Rigaud de Vaudreuil de Cavagnial was born on November 22, 1698, at Quebec City. He was the son of Philippe de Rigaud de Vaudreuil, governor general of New France, and Louise-Élisabeth de Joybert de Soulanges et de Marson. Few colonial families were more deeply embedded in French imperial service. Pierre grew up in an environment where military rank, seigneurial property, Indigenous diplomacy, and competition for royal patronage were inseparable.

He entered the colonial regular troops while young and received an ensign’s commission in 1708, largely honorary at first. His father ensured that he learned the practical workings of frontier command. Pierre served at posts where French authority depended upon personal relationships with Canadian officers, missionaries, traders, and Indigenous nations. Unlike officers arriving directly from France, he spoke from a colonial perspective and regarded Canadian militia and Native alliances as central instruments of defense.

Vaudreuil advanced to lieutenant and captain and spent years in the Great Lakes region. At Fort Saint-Joseph and other western posts, he participated in diplomacy, trade regulation, and efforts to maintain alliances among nations with their own interests. In 1733 he became governor of Trois-Rivières. He married Louise Fleury de La Gorgendière in 1730, joining another influential Canadian family.

In 1742 Vaudreuil was appointed governor of Louisiana. He worked to strengthen New Orleans, manage relations with the Choctaw and other Indigenous peoples, and contain British influence. His Louisiana administration further developed his belief in flexible frontier warfare and negotiated alliances. Recalled to France in 1753, he secured appointment as governor general of New France in 1755. He returned to Canada as the first Canadian-born holder of that office, carrying decades of colonial experience and a strong sense that local knowledge should guide imperial strategy.