Was he real?
Governed the Salic Franks
Defeated "Attila the Hun" in 451
Was son or son-in-law of Clodion
Before 430, the Salic Francs traverse the Escaut, and settle north of Gand [Gant] and also into Courtrai. Their chief, Clodion, takes Cambrai in 430. When Clodion died in 448, Merovee would succeed him as chief. Merovee was a Frankish Prince who ruled over the Saliennes [thus, this Merovee is King of the Salic Francs] from 452-458. He was the commander of the Francs in the great Battle of the Catalonic Fields, where he defeated Attila the Hun in 451. It is from his name that the kings of the First Race derived their name. The Huns had steadily increased their domination from humble beginnings off the Caspian sea from Caucase to the Elbe, from Muldavia to Hungary in the later part of the Fourth Century.
During his reign the Empress of the Roman Empire, Galla Placidia, in 423 governed in the name of her 4-year old son, Valentinius III. She put the Gallo-Roman Aetius [who really came from Bulgaria [originally Silistria] in charge of maintaining the Roman authority over Gaule.
Although he was unsuccessful against the Wisigoths, he pushed the Riparian Francs beyond the Rhine. In 440, the Riparians would return and take over Cologne and Treves. In the meantime, the Burgundians settle in what would become Bourgogne and in Savoie. In 443, they are camped around Worms and Mayence under the command of their King, Gonthier. Died: in 458.
"A number of mythical genealoies can take his line back to the 1st C. and link him to the early Kings of Britain. Merovech is widely accepted as historical, and Gregory of Tours wrote that some said his father was Chlodio. But from there up to Boudicca not one generation is attested in a contemporary source, and most are from the sort of late chronicles that tend to be dismissed as fiction."
King Merovech ("the Young") of Franks 
