Count Amadeus VI of Savoy arranged her marriage with his nephew 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:
1234Andrea 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 (2nded.). Cambridge University Press.
Ward, A.W.; Prothero, G.W.; Leathes, Stanley, eds. (1934). The Cambridge Modern History. Vol.XIII. Cambridge at the University Press.
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