Isabella Stuart, duchess of Brittany, Ownership Confirmed (14??-1455?) by Inventory. Ownership Confirmed (14??-1455?) by Coat of Arms.
Françoise Picart, Ownership Possible (14??-c. 25 September 1469) by Instance of borrowing, inventory.
Margaret of Brittany, duchess of Brittany, Ownership Confirmed (1455?-1469) by Inventory.
Deuffic, Jean-Luc. "La 'Librairie' de la duchesse Marguerite de Bretagne en 1469." Pecia 7 (2009): 167-70.: 168
De la Borderie, Arthur. "Notes sur les livres et les bibliothèques au Moyen Age en Bretagne," Bibliothèque de l'Ecole de Chartres 3 (1862): 39-53.: 45, Item 3