Elbeuf is a town in Haute Normandy France. She married Charles Eugène of Lorraine, a member of the Guise branch of the Lorraine family. Her family name can be rendered as Cetner or Zetzner. While there is no Wikipedia article about her, batguano's authoritative Vigée-Lebrun site has a biography of her.
Acording to batguano, "Vigee Le Brun had aspirations as a landscape painter. Early in her career she had copied paintings by Joseph Vernet. Though many of the portraits painted in France before the Revolution contain vistas of trees, shrubbery, and open sky, in Italy she began to make serious attempts at painting landscape for its own sake, directly from nature. She sometimes integrated these into her portraits. For the most ambitious of these, that of Countess Potocka, she chose a romantically picturesque grotto, undoubtedly an evocation of the celebrated gardens of Tivoli. Behind the Countess, a hazy sunlit landscape of moss and ivy covered rocks, includes a series of waterfalls." She is not in Normandy.