His senior title was Duke of Gramont.

He was the youngest son of Antoine III de Gramont and Françoise-Marguerite du Plessis de Chivré (d. 2 May 1689), Cardinal Richelieu's niece.

He distinguished himself in the King's armies during the campaign against Holland in 1672 and during the Siege of Besançon (1674) in the Franco-Dutch War.

Later he was Ambassador extraordinary in Spain, Viceroy of Navarre and Béarn, and governor of Bayonne.

They had two children : After his wife died, he married Anne Baillet de La Cour (1665-1737) in 1710.