Gian Galeazzo Visconti

Timeline

1. 1371–1377Pavia · LombardyIn 1370 Gian Galeazzo married the French princess Isabelle, strengthening ties with the Valois royal house. During this period he administered his lands from a base in Pavia, accumulating administrative and military experience in preparation for eventually taking charge of Milan.
2. 1378–1380Milan · LombardyAfter his father Galeazzo II died in 1378, Gian Galeazzo jointly ruled Milan with his uncle Bernabò Visconti. He oversaw the expansion of Milan Cathedral and pursued centralizing policies, while his differences with his uncle deepened, laying the groundwork for his seizure of sole power in 1385.