Lady Boyle is an aristocrat of Dunwall and mistress to Hiram Burrows, whose military she finances. She is an influential figure in Dunwall, holding lavish parties and gatherings at her home in the Estate District. A close ally of the Lord Regent, she aided in the assassination of the Empress.
The identity of Burrows mistress – the “true” Lady Boyle – is randomized, varying in each playthough of Dishonored. She may be any of the three Boyle sisters: Waverly, Esma or Lydia.
“It’s all wonderful, the new Sokolov devices. Those fierce walls of light, keeping the riffraff at bay, and now we’ve got electrical lighting in the evening, making our garden dinners much more pleasant. And all it costs is a bit of whale oil simply plucked from the ocean. It’s a marvelous age to be alive.”
A wealthy woman and the youngest of the Boyle sisters, Waverly owns Boyle Mansion, the location of the mission Lady Boyle’s Last Party. She is noticeably more paranoid and serious than either of her sisters – if Corvo Attano asks to take her somewhere private, she will rebuff him, saying she does not know him, or his family. On the other hand, she responds readily to the claim that her life is in danger (which validates her previously-held fears), and complies with Corvo’s instructions thereafter.
According to the Heart, Waverly “suffers from reckless frivolity, followed by long bouts of melancholy.”
“Oh, but this is perfect, I love it! What happens next? Are you gonna tie me up?”
Esma’s activities and untidy habits frequently put her at odds with her sisters. Waverly regards her as a drunkard, while the Heart notes that she “drinks to forget herself.” Further investigation using the Heart reveals that Esma once gave birth to a daughter, a process that was excruciating for her. It is unknown whether the child survived or not, but the experience left Esma unable to become pregnant again.
“We have an exquisite old harpsichord. Do you play?”
The mysterious and musical Lydia bemoans her inability to find a true musician in Dunwall to take as a lover. If Corvo convinces her to go somewhere more private, she will take him to the music room. The Heart notes that she is one of the greatest musicians in all of Gristol, a skill she has cultivated in the absence of sociability or great beauty.