Following protests , the Austrians left and the French ceded it to Italy on 20 October .
Once the wars ended , the Treaty of Vienna ceded the region to neutral France , but left the fortresses under Austrian control for a time .
Following protests , the Austrian left and the French ceded it to Italy on 20 October .
Once the wars ended , the Treaty of Vienna ceded the region to neutral France , but left the fortresses under Austrian control for a time .