John Beaufort, Earl of Somerset,
Ownership Possible (c. 1401-1410) by Inscription.
John Beaufort, Duke of Somerset,
Ownership Possible (c. 1410-1444) by Inscription.
Margaret Beauchamps, duchess of Somerset,
Ownership Confirmed (c. 1443-1456) by Inscription.
Margaret Beaufort, countess of Richmond and Derby,
Ownership Confirmed (1456?-1509) by Inscription.
Anne of York, duchess of Exeter,
Ownership Possible (c. 1461) by Inscription.
Powell, Susan. "Lady Margaret Beaufort and Her Books," The Library 6, no. 3 (1998): 197-240.: 201 & 203
Jones, Michael K., and Malcom G. Underwood. The King's Mother: Lady Margaret Beaufort, Countess of Richmond and Derby (Cambridge: Cambridge University Press, 1993).: 32, 240