Valentina Visconti, duchess of Orleans,
Ownership Confirmed (139?-1408) by Inventory.
Shultz, Christopher R. "The Artistic and Literary Patronage of Louis of Orleans and His Wife, Valentine Visconti, 1389-1408." (Ph.D. diss., Emory University, 1977).
Champion, Pierre. La Librairie de Charles d'Orléans (Paris, 1910; repr. Geneva: Slatkine Reprints, 1975).