There are 4 titles associated with this person.

@book{ wphp_7419
  author={Lansdell,Sarah},
  year={1796},
  title={Manfredi, Baron St. Osmund. An old English romance. In two volumes. By Sarah Lansdell, Tenterden.},
  publisher={Minerva Press, William Lane},
  address={London},    }
@book{ wphp_7454
  author={Lansdell,Sarah},
  year={1796},
  title={Manfredi, or the mysterious hermit. An interesting and original romance.},
  publisher={G. Stevens},
  address={London},    }
@book{ wphp_7468
  author={Lansdell,Sarah},
  year={1797},
  title={Proposals for publishing by subscription, a novel, in three volumes, entitled The tower; or, the romance of Ruthyne. Written by the authoress of Manfredi.},
  publisher={},
  address={Royal Tunbridge Wells},    }
@book{ wphp_7479
  author={Lansdell,Sarah},
  year={1798},
  title={The tower; or the romance of Ruthyne. In three volumes. By the authoress of Manfredi.},
  publisher={},
  address={London},    }