Metropolitan City of Venice had annexed Padua and Verona, and by the 16th century the republic included territories from the Julian Alps to Crema, Istria, Dalmatia, Cyprus and part of the Peloponnese. In 1797, Napoleon invaded the Republic and, following the Treaty of Campo Formio, it was ceded to Austria. After the final defeat of Napoleon, the Austrian Empire founded a province of Venice on the Adriatic. In 2015 this was converted to the current Metropolitan City. Facing east on the Northern Adriatic Sea, the Metropolitan City is bordered to the northeast by the Province of Udine and Province of Pordenone, south by the
Gulf of Patras of 350–400 km. The port city of Patras lies to the southeast and is the only major port on the gulf. It serves ferries to Ancona and Brindisi in Italy and to Cephalonia. On the northern shore Missolonghi also has a port. The old ports of Rio and Antirrio lie at the east end of the Gulf; there is a ferry service between them which complements the traffic over the Rio-Antirio bridge. The gulf is rich in fish as well as molluscs including sea snails and clams. A number of major naval battles took place in the Gulf of Patras: