Joan of Valois, duchess of Brittany,
Ownership Possible (c. 1415-1433?) by Coat of Arms.
Isabelle of Brittany, countess consort of Laval,
Ownership Confirmed (post-1430-c. 1444?) by Coat of Arms.
Backhouse, Janet. "A Reappraisal of the Bedford Hours," British Library Journal 7, no. 1 (1981): 47-69.