Why was Northern Italy so much in the forefront of urban self-government?

Why is northern Italy at the forefront of urban autonomy? In some Italian cities, you can establish a degree of autonomy. Places of marine cities such as Genoa benefit from the Crusades and make them powerful. This brought about an impact on the main inland town in the north due to the increase in trade. This has led to prosperity and growth. As a result, due to the specific socio-economic change that occurred in rural areas, the town began to escape from the old feudal system, seeking a new order that will contribute to the newly established urban class.

By the end of the 12th century, a new extraordinary society emerged in the northern part of Italy, mixed wealthy, fluid, expanding, aristocracy and urban robbery (robbery) classes, interested in urban institutions and republic governments I was brought. However, many new urban nations have also established violent factions based on familiality, compatibility, and compatibility, which have impaired unity (eg Guelph and Kipling). By 1300, most of these republics became kingdoms dominated by Signore. The only exceptions are Venice, Florence, Lucca, etc., even now the European monarchy is intensifying, it is still a republic. In many cases, after signi fi cation, Signignor was able to find a stable dynasty in its dominant city (or a group of local cities) and gain nobility's sovereignty through the public boss. Jean Galeazzo Visconti bought 100 thousand gold florin from the title of the Duke of Milan of the Emperor Wenceslut

The Italian Renaissance was intertwined between the intellectual movement of humanism of the Renaissance and the intensely independent aggressive urban society of urban nations in Italy from the 13th to the 16th century. Italy is the birthplace of the Renaissance for several reasons. In the first 20 to 30 years of the 15th century, especially in Florence, rare cultural weathering occurred. This "enlightenment of Florence" is a great achievement (Holmes, 1992). This is a classic and classic culture designed to achieve the ideal of republican between Athens and Rome. The sculptor uses Roman models and classical themes. This society has a classic history and a new relationship. I feel that I own it, I will recover. The Florentine people feel the same way as in the 1st century BC. Republican Rome. Giovann Rucellai (1475-1525) writes that he belongs to a great era; Leonardo Bruni has expressed a view similar to Panegyric in Florence.