La Vallière

[la va-lyer]
noun
  1. Du·chesse de [dy-shes duh] /dyˈʃɛs də/, Francoise Louise de la Baume Le Blanc, 1644–1710, French noblewoman and mistress of Louis XIV of France: later a religious.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018