What statements accurately describe northern Italian Renaissance city-states?

Northern Italian Renaissance city-states, such as Florence, Venice, and Milan, were characterized by their political independence, wealthy merchant classes, and vibrant cultural life. These city-states became centers of art, science, and Humanism, fostering the works of renowned artists and thinkers like Leonardo da vinci and Michelangelo. Their competitive nature often led to conflicts and alliances, shaping the political landscape of Italy during the Renaissance. Additionally, the presence of powerful banking families, like the Medici in Florence, played a crucial role in funding artistic endeavors and promoting cultural advancements.