Texts:
Cecily Neville, Duchess of York, Ownership Confirmed (c.1485-1495) by Archival Mention.
Dzon, Mary. "Cecily Neville and the Apocryphal 'Infantia Salvatoris' in the Middle Ages," Medieval Studies 71 (2009): 235-300.
Laynesmith, J.L. "'To Please...Dame Cecely that in Latyn hath litell intellect': Books and the Duchess of York," in The Fifteenth Century XV: Writing, Records, and Rhetoric, ed. Linda Clark (Woodbridge, Suffolk; Rochester, NY: Boydell and Brewer, 2017), 37-56.: 52, 55