Diane de Poitiers Duchesse de Valentinois. 1499-1566. French noblewoman and mistress of Henry II. The Woman impact, enduring throughout his reign (1547-1559), overshadowed that his partner, Catherine de Médicis.
French noblewoman who was the mistress of Henry II; she had even more impact over him than did his partner Catherine de Medicis (1499-1566)