Fanchon Moreau

Françoise 'Fanchon' Moreau (1668 – after 1743) was a French operatic soprano who belonged to the Académie Royale de Musique, also a celebrated beauty who was a favourite of the Great Dauphin.
Opera career.
Following her older sister Louison Moreau, Fanchon made her debut at the Paris Opéra in 1683 in the prologue of "Phaëton" by Lully, probably playing the role of Astrée. She remained with the company until at least 1702. Her sister stayed until 1692, during which period both sisters were referred to as Mlle Moreau, which sometimes makes it difficult to determine who sang what. She sang in operas by Lully, Campra, Charpentier, Destouches, Collasse, Desmarets, and including many premieres.
Celebrity.
Like her sister, Fanchon received the attentions of Louis, the Great Dauphin. Julie d'Aubigny, the swordswoman and opera singer known as La Maupin, also fell in love with her and tried to commit suicide when she was rejected. Fanchon later became the long-term mistress of Philippe de Vendôme, fourth Duke of Vendôme.
Fanchon's colourful love life was referred to in François Couperin's "La femme entre deux draps" and was also the subject of his harpsichord composition "La tendre Fanchon".