|Capital||Verulamium (St. Albans)| The fortunes of the
Catuvellauni and their kings before the conquest can be traced
through numismatic evidence and scattered references in
classical histories. They are mentioned by Dio Cassius, who
implies they led the resistance against the conquest in AD 43.
They appear as one of the civitates of Roman Britain in
Ptolemy's Geography in the 2nd century, occupying modern
Hertfordshire, Bedfordshire and southern Cambridgeshire and
based around the town of Verlamion (modern St Albans). The
Catuvellauni are etymologically unrelated to the Catalauni of
Belgic Gaul. The name is derived from the Ancient British catu-
uellauni meaning "battle-chieftains" or "battle-leaders". This
ultimately derives from the Proto-Celtic *katu-, "battle", and
*wel-nā-, "to lead". Before the Roman conquest  Cassivellaunus,
who led the resistance to Julius Caesar's first expedition to
Britain in 54 BC, is often taken to have belonged to the
Catuvellauni. His tribal background is not mentioned by Caesa