How did the rise of the italian city-states lead to the renaissance?

The Renaissance began in northern and central Italy.  Part of it was because of the properity of Italian city-states.  In Italy, growing towns demanded self-rule and developed into city-states.  Each city consited of a powerful city and the surrounding towns and countryside.  Italian city-states conducted their own trade, collected their own taxes, and made their own laws.  Some city-states, such as Florence, were governed by an elected council.  During the Renaissance groups of guild members, called boards, often ruled Italian city-states.  Some wealthy families gained long-term control; city-states were ruled by a single family, such as the Medicis

most camps were located in the area of the general government in occupied poland