Noun
French noblewoman who was the mistress of Henry II; she had more influence over him than did his wife Catherine de Medicis (1499-1566)
Source: WordNetFrancis is portrayed in Diane Haeger's novel "Courtesan" about Diane de Poitiers and Henri II. Source: Internet
One look and you know it was designed by women: Diane de Poitiers added the delightful arched bridge across the river. Source: Internet