There are 4 titles associated with this person.

@book{ wphp_22627
  author={Churchill,Sarah and Hooke,Nathaniel},
  year={1742},
  title={An account of the conduct of the Dowager Duchess of Marlborough, from her first coming to Court, To the Year 1710. In a Letter from Herself to My Lord},
  publisher={George Hawkins \& },
  address={London},    }
@book{ wphp_14205
  author={Churchill,Sarah},
  year={1742},
  title={An account of the conduct of the Dowager Duchess of Marlborough, from her first coming to court, to the year 1710. In a letter from Herself to My Lord —},
  publisher={George and Alexander Ewing},
  address={Dublin},    }
@book{ wphp_22095
  author={Churchill,Sarah and Hooke,Nathaniel},
  year={1742},
  title={An account of the conduct of the Dowager Dutchess of Marlborough, from her first coming to court, to the year 1710. In a letter from herself to My Lord -},
  publisher={William Smith II [Dame Street] \& John Smith [Blind Quay] \& George Faulkner I [Essex Street]},
  address={Dublin},    }
@book{ wphp_23115
  author={Churchill,Sarah},
  year={1744},
  title={A true copy of the last will and testament of her grace Sarah, late Duchess Dowager of Marlborough: With the codicil thereto annexed.},
  publisher={Joseph Rhames [Capel Street] \& },
  address={Dublin},    }