. The twenty-eight cities of Britain – Historia Brittonum

haec sunt nomina omnium ciuitatum quae sunt in tota brittannia, quarum numerus est uiginti octo: cair guorthigirn, cair guintguic, cair mincip, cair ligualid, cair meguaid, cair colun, cair ebrauc, cair custeint, cair caratauc, cair grauth, cair maunguid, cair lundein, cair ceint, cair guoiragon, cair peris, cair daun, cair legion, cair guricon, cair segeint, cair legion guar uisc, cair guent, cair briton, cair lerion, cair draithou, cair pensauelcoit, cair urnach, cair celemion, cair luitcoit.