a renowned king of the Silures, an ancient British people who inhabited South Wales. Having valiantly defended his country for nine years against the Romans, he was at length defeated, and fled for protection to his stepmother Cartimandua, queen of the Brigantes; but she treacherously delivered him up to the Romans, who carried him to Rome, A.D.51. When brought before Claudius, he addressed that emperor in a speech at once so noble and pathetic that he immediately obtained a pardon for himself and his friends. (Tac. Ann. xii., Hist. iii.; Dion Cass. lx.) See BRITAIN.