There are 2 titles associated with this person.

@book{ wphp_10118
  author={Cavendish,Margaret},
  year={1813},
  title={Select Poems of Margaret Cavendish, Duchess of Newcastle. Edited by Sir Egerton Brydges, K.J.},
  publisher={},
  address={Kent},    }
@book{ wphp_24859
  author={Cavendish,Margaret},
  year={1814},
  title={A True Relation of the Birth, Breeding, and Life, of Margaret Cavendish, Duchess of Newcastle. Written by Herself. With a Critical Preface, &c. By Sir Egerton Brydges, M.P.},
  publisher={},
  address={Kent},    }