Ferry from Piraeus to Italy

Italy is a European country with many crucial ports: Ancona, Venice, Livorno, Bari, Brindisi, Civitavecchia and Trieste. There are also two independent mini-states, called San Marina and Vatican City. It is located approximately 414.62 miles away from Piraeus.
Getting back and forth from Piraeus to Italy is easy as ferries can be found only during high season though to 0f the ports of Italy.