Antonietta d'Orléans-Longueville

Antoinette d'Orléans-Longueville was a French noble lady, of Capetian ancestry, member of the house of Orléans-Longueville. She was Lady of Château-Gontier and, through her marriage, became the Marquise of Belle-Île. Widowed as a young woman, the wealthy lady became a nun and eventually founded the Benedictine order of Notre-Dame of Calvary in Paris.