Chlodio (c. 392/395–445/448; also spelled Clodio, Clodius, Clodion, Cloio or Chlogio) was a king of the Salian Franks from the Merovingian dynasty. He was known as the Long-Haired King and lived in Thuringian territory, at the castle of Duisburg. He became chief of the Thérouanne area in 414 AD. From there, he invaded the Roman Empire in 428, defeating a Roman force at Cambrai, and settled in Northern Gaul, where other groups of Salians were already settled. Although he was attacked by the Romans, he was able to maintain his position and, 3 years later in 431, he extended his kingdom south to the Somme River in the future Francia. In AD 448, 20 years after his reign began, Chlodio was defeated at Vicus Helena in Artois by Flavius Aëtius, the commander of the Roman army in Gaul.