There are 2 titles associated with this person.

@book{ wphp_11601
  author={Stuart,Mary and Roberts,Mary},
  year={1822},
  title={The Royal Exile; or, Poetical Epistles of Mary, Queen of Scots, During Her Captivity in England: With Other Original Poems. By a Young Lady. Also, by her father, the Life of Queen Mary, &c. &c. In Two Volumes.},
  publisher={Longman, Hurst, Rees, Orme, and Brown \& John Taylor and James Augustus Hessey \& },
  address={London},    }
@book{ wphp_9942
  author={Barbauld,Anna Laetitia and Wilson,Margaret Baron and Rolls,Mary and Stuart,Mary and Landon,Letitia Elizabeth and Hemans,Felicia and Emmerson,Mrs. and Chetwynd,Mrs. Henry Wayland and Carey,Elizabeth Sheridan},
  year={1828},
  title={Choice Selections, and Original Effusions; or, Pen and Ink Well Employed. By a daughter of a clergyman.},
  publisher={Thomas Hurst, Edward Chance, and Co. \& John Warren},
  address={Royston},    }