Her maternal uncle Count Amadeus VI of Savoy arranged her marriage with Gian Galeazzo Visconti. As her dowry, Isabella received the county of Sommières, exchanged later for the county of Vertus.[3] On 8 October 1360, Isabella and Gian Galeazzo were married in Milan, and six months later, in April 1361, she was declared sovereign Countess of Vertus.[4] Following her marriage, Isabella brought her collection of French books to Milan.[5] When her daughter, Valentina, traveled to France for her marriage, she brought twelve books of Italian origin.[5] The couple had four children:
^ abcdAndrea Gamberini (2000). Gian Galeazzo Visconti, duca di Milano (in Italian). Dizionario Biografico degli Italiani, volume 54. Roma: Istituto dell'Enciclopedia Italiana. Accessed May 2020.
Adams, Tracy (2010). The Life and Afterlife of Isabeau of Bavaria. The Johns Hopkins University Press.
Bell, Susan Groag (1988). "Medieval Women Book Owners: Arbiters of Lay Piety and Ambassadors of Culture". In Erler, Mary; Kowaleski, Maryanne (eds.). Women and Power in the Middle Ages. The University of Georgia Press. pp. 149–187.
D'Ancona, Mirella Levi (1990). "La Vergine Maria nell'Offiziolo Visconteo: Parte I: Il Ms. BR 397 della Biblioteca Nazionale di Firenze". La Bibliofilía (in Italian). 92 (2 (maggio-agosto)). Casa Editrice Leo S. Olschki s.r.l.: 109–143.
Hay, Denys (1977). The Italian Renaissance in Its Historical Background (2nd ed.). Cambridge University Press.
Ward, A.W.; Prothero, G.W.; Leathes, Stanley, eds. (1934). The Cambridge Modern History. Vol. XIII. Cambridge at the University Press.
