Answer:
5
Step-by-step explanation:
The south of Italy and the island of Sicily were united under the rule of the Sicilian kings, whose power was one of the most powerful states of the Middle Ages. In the center of Italy were the possessions of the head of the Catholic Church - the Papal States.
The most developed economically was the north of Italy. The struggle of the cities located there with the lords ended in the victory of the trade and craft centers, which subjugated the district. So in Northern Italy there were special city-states - Genoa, Venice, Florence.