English summary: Venice obtained profitable earnings from the salt trade - this key product helps in the understanding of the military and diplomatic policies of the Republic; the complexity in the handling of its finances; the mysteries of the administration and centers of decision; the mechanism of the relationships between the capital and the city-states of Italy or the maritime empire from Istria to Cyprus and the foreign lords; the expansion of the artistic life around the ducal palace. Venice was the city of salt that financed public monuments and the palaces and villas of noble...