Remaining alone in Milan, Bianca Maria devoted herself to the administration of the Duchy, as attested by the correspondence with her husband, which gives precious insights on the education of their children, state affairs, the financial difficulties, and details of her daily life.
Tinggal sendirian di Milan, Bianca Maria mengabdikan dirinya kepada administrasi Provinsi, seperti yang dibuktikan oleh korespondensi dengan suaminya, yang memberikan wawasan berharga pada pendidikan anak-anak mereka, urusan negara, kesulitan keuangan, dan rincian kehidupannya sehari-hari.