François du Pont Duvivier was born September 5, 1676, at Sérignac [fr], province of Saintonge, France.
He became ensign, and navy captain in Acadia and Île-Royale (present-day Cape Breton Island).
His parents Hugues Du Pont and Marie Hérauld, of Gourville.
On January 12, 1705, Duvivier married Marie Mius d’Entremont.
He served in the garrison at Port Royal, the capital of Acadia, during Queen Anne's War, including during the successful defenses of 1707 and the fall of Port Royal in 1710.