http://www.athenapub.com/boudicca.htm
The Iceni were a Celtic tribe living in Norfolk and Suffolk in eastern Britain. Due to flourishing trade across the English Channel with the Roman empire, their merchants and rulers prospered, issuing their own coinage between about 65 BC and AD 61. Near the end of this period, following the Roman invasion of Britain under Claudius in AD 43, king Prasutagus (AD 50-60) became a rich and powerful client of the Romans. After his death, however, the Roman administrators in Britain made the Iceni a subject population.
Boudicca, widow of Prasutagus, now became queen of the Iceni. After she and her two daughters were subjected to grave humiliations by the Romans, she led a revolt of the Iceni and several other tribes which lasted for several months in 60-61. The Boudiccan forces burned and destoyed the three major towns of Londinium (London), Verulamium (St. Albans), and Camulodunum (Colchester), killing many thousands of citizens.