Battle of Cannae
During Hannibal's invasion of Italy during the Second Punic War, the Carthaginian general all but wiped out an 85,000-strong Roman army at the Battle of Cannae in 216 BC. In doing so, one consul, Lucius Aemilius Paullus, was killed and the other, Gaius Terentius Varro, was stranded with the few survivors of the battle at Venusia.