The Battle of the Allia was a battle fought between the Senones – a Gallic tribe led by Brennus who had invaded northern Italy – and the Roman Republic. The battle was fought at the confluence of the Tiber and Allia rivers, 11 Roman miles (16 km, 10 mi) north of Rome. The Romans were routed and Rome was subsequently sacked by the Senones. According to scholar Piero Treves, "the absence of any archaeological evidence for a destruction-level of this date suggests that sack of Rome was superficial only."