Marquise de Maintenon in the context of "Madame de Montespan"

Françoise-Athénaïs de Rochechouart de Mortemart, Marquise of Montespan (5 October 1640 – 27 May 1707), commonly known as Madame de Montespan (French: [madam də mɔ̃tɛspɑ̃]), was a French noblewoman and the most celebrated royal mistress of King Louis XIV. During their romantic relationship, which lasted from the late 1660s to the late 1670s, she was sometimes referred to by contemporaries as the "true Queen of France" due to the pervasiveness of her influence at court. She was a great-grandmother to Louis Alexandre, Prince of Lamballe, who was the husband to Maria Luisa of Savoy, also known as the Princesse de Lamballe.

Born into the House of Rochechouart, one of the oldest noble families of France, Françoise-Athénaïs married the Marquis of Montespan in 1663. She then became a maid of honour to Princess Henrietta, Duchess of Orléans, and later a lady-in-waiting to Queen Maria Theresa. Noted for her great beauty and wit, she carefully cultivated a relationship with Louis XIV and eventually supplanted Louise de La Vallière as his favourite. She had seven children by the king, six of them later legitimised but only four survived infancy. She mostly entrusted her children to Madame Scarron, who as the Marquise de Maintenon was later to replace her in the king's affections.