Henry IV of France's Wives and Mistresses

Henry IV of France's wives and mistresses played a significant role in the politics of his reign. Both Henry (1553–1610) and his first wife Marguerite of Valois, whom he married in 1572, were repeatedly unfaithful to each other, and the collapse of their marriage led to their estrangement and living apart. Although Henry fathered children with a series of mistresses, his lack of a legitimate heir became a cause of concern, and his marriage was not annulled until 1599. In 1600, at the age of forty-six, he married his second wife, Marie de' Medici, who bore him six children, including the future Louis XIII. Henry was unfaithful to his second wife as well and insisted that she raise his illegitimate children along with her own.

Henry's womanising became legendary, earning him the nickname of Le Vert Galant. His sexual appetite was said to have been insatiable, and he always kept mistresses, often several at a time, as well as engaging in random sexual encounters and visits to brothels. Even so, he tended to elevate one mistress above the others and shower her with money, honours, and promises. His two most famous mistresses of this type were Gabrielle d'Estrées, who died in 1599, and her successor, Henriette d'Entragues, who involved herself in plots against the crown. Henry promised marriage to each of them, exposing himself to a series of political problems.