The Noble Families of Italy played a significant role in the country's history, particularly during the Middle Ages and the Renaissance. These families often held vast lands and wealth, influencing politics, culture, and the economy. Prominent families included the Medici in Florence, known for their patronage of the arts, and the Sforza in Milan, who were powerful rulers. Many noble families maintained their status through strategic marriages and alliances, which helped them gain power and territory. The decline of the nobility began in the 19th century with the unification of Italy, leading to changes in social and political structures that diminished their influence.