Most of Italy's rivers drain either into the Adriatic Sea (like Po, Piave, Adige, Reno) or into the Thyrrenian (like Arno, Tiber and Volturno), though the waters from some border municipalities (Livigno in Lombardy, Innichen and Sexten in Trentino-Alto Adige/Südtirol) drain into the Black Sea through the basin of the Drava, a tributary of the Danube, and the waters from the Lago di Lei in Lombardy drain into the North Sea through the basin of the Rhine.
Other Information:
Maritime Republics
Bronze Age