Lake Vadimon (Gallic Invasion of Italy).
Fought B.C. 283, between the Romans, under P. Cornelius Dolabella, and the Gauls and their Etruscan allies. Dolabella attacked the Etruscans as they were crossing the Tiber close to the lake, and destroyed the flower of their army. He then fell upon the Gauls, whom he also defeated with heavy loss, with the result that in the following year they made peace and withdrew from Italy.