Catherine Charlotte de Gramont was Princess of Monaco from 1662 to 1678 as the consort of Prince Louis I, and was once a mistress of Louis XIV of France in 1666.

Antoine de Gramont, 2nd Duke of Gramont, comte de Guiche, comte de Gramont, comte de Louvigny, Souverain de Bidache was a French military commander and diplomat. He served as Marshal of France from 1641, Viceroy of Navarre and Béarn, and Governor of Bayonne.