The House of Sforza was a prominent Italian noble family that ruled the Duchy of Milan from the 15th to the 16th centuries. Founded by Francesco Sforza, a condottiero, the family rose to power through military prowess and strategic marriages. They played a significant role in the politics of Northern Italy during the Renaissance. Under the Sforza rule, Milan became a cultural and artistic center, attracting renowned figures like Leonardo da Vinci and Bramante. The family's influence extended beyond politics, as they were patrons of the arts and architecture, contributing to the development of the region's rich cultural heritage.