The Catuvellauni are part of the Aylesford-Swarling archaeological group in Southern England often linked to Belgic Gaul and possibly to an actual Belgic conquest of the region alluded to by Caesar. John T. Koch conjectures that the Battle of the Catalaunian Plains and the modern name of Châlons-en-Champagne preserves the name of an original continental tribe of Catuvellauni, a name he derives from a compound of the ancient Celtic roots *"katu-" ("battle") and *"wer-lo" ("better"), thus meaning "excelling in battle", the same source as that of the later British and Breton personal name Cadwallon.