2009 L'Aquila earthquake of the victims were brought, suffered damage in the 4.8 aftershock which followed the main earthquake an hour later. Powerful aftershocks, some only slightly weaker than the main shock, were felt throughout the following 2 days. Villages in the valley along Strada Statale 17 just outside l'Aquila suffered the greatest damage while medieval mountain hill towns lying high above the valley suffered little damage. Onna was reported to be mostly leveled with 38 deaths among the 350 residents. The villages of Villa Sant'Angelo and San Pio delle Camere were badly damaged. Fatalities were reported in Poggio Picenze, Tornimparte, Fossa, Totani,
Italian city-states town revolts led to the foundation of city-states throughout medieval Europe, such as in Russia (Novgorod Republic, 12th century), in Flanders (Battle of Golden Spurs, 14th century) in Switzerland (the towns of the Old Swiss Confederacy, 14th century), in Germany (the Hanseatic League, 14th–15th century), and in Prussia (Thirteen Years' War, 15th century). Some Italian city-states became great military powers very early on. Venice and Genoa acquired vast naval empires in the Mediterranean and Black Seas, some of which threatened those of the growing Ottoman Empire. During the Fourth Crusade (1204), Venice conquered a quarter of the Byzantine Empire. The