Lacey is the companion of Lady Patience. She starts off as her maid, but the two become more like friends later in life. She is usually seen tatting or knitting. Lacey usually serves as a voice of reason for Patience and as a bridge between her and Fitz. Lacey is also noted to be the most gifted student Hod had ever taught.

Her age is never specified, but she can be inferred to be around somewhat older than Patience; she had reared children by the time Fitz and Patience were introduced to each other, and she is noted to be old and frail when she meets Fitz again during Fool's Fate, sixteen years after their last meeting. When the epilogue of Fool's Fate occurs, Lacey has passed away.