There are 2 titles associated with this person.

@book{ wphp_18540
  author={Montolieu,Isabelle de},
  year={1812},
  title={Sentimental anecdotes, by Madame de Montolieu, author of "Tales," "Caroline of Lichfield," &c. &c. &c.  Translated from the French by Mrs. Plunkett, formerly Miss Gunning. Two volumes in one.},
  publisher={Moses Thomas \& },
      }
@book{ wphp_18538
  author={Montolieu,Isabelle de},
  year={1815},
  title={Caroline of Lichtfield; a novel translated from the French. By Thomas Holcroft. Two volumes in one.},
  publisher={Richard Scott [276 Pearl Street] \& },
  address={New York},    }