Belgae

A British civitas. The Romans applied the name Belgae to a whole group of tribes in north-west Gaul, but the appearance of a civitas of this name in Britain is a mystery. The civitas of the Belgae was most probably an artificial creation of the Roman administration, and was established in c.AD 80 following the death of King Cogidubnus. Its administrative capital at Winchester was known as Venta Belgarum.

A Dictionary of British History. Ed. John Cannon. Oxford University Press, 2001.