In the late Iron Age Britain can be divided into three broad zones: a core comprIsIng the south-east which shared many cultural characteristics with the Continent; a periphery comprising an arc ofcoin-issuing tribes stretching from Dorset to Lincolnshire; and a beyond, that is the rest of Britain west and north of the periphery where coinage had not been introduced into the economy. This threefold division provides a convenient way of considering the late Iron Age and will form the basis for the next three chapters. In this chapter we will be concerned with the tribes of the core: the Trinovantes/Catuvellauni, who cannot be distinguished from each other numismatically, the Iceni, the Atrebates and the Cantii.