▁was ▁unable ▁or ▁unw illing ▁to ▁protect ▁him ▁however , ▁given ▁her ▁own ▁tr uce ▁with ▁the ▁Rom ans , ▁and ▁handed ▁him ▁over ▁to ▁the ▁inv aders . ▁Ost or ius ▁died ▁and ▁was ▁replaced ▁by ▁A ulus ▁Did ius ▁Gall us ▁who ▁brought ▁the ▁Wel sh ▁borders ▁under ▁control ▁but ▁did ▁not ▁move ▁further ▁north ▁or ▁west , ▁probably ▁because ▁Claud ius ▁was ▁keen ▁to ▁avoid ▁what ▁he ▁considered ▁a ▁difficult ▁and ▁drawn - out ▁war ▁for ▁little ▁material ▁gain ▁in ▁the ▁mountain ous ▁terrain ▁of ▁u pl and ▁Britain . ▁When ▁N ero ▁became ▁em peror ▁in ▁ 5 4 , ▁he ▁seems ▁to ▁have ▁decided ▁to ▁continue ▁the ▁invasion ▁and ▁appointed ▁Quint us ▁Ver an ius ▁as ▁governor , ▁a ▁man ▁experienced ▁in ▁dealing ▁with ▁the ▁troubles ome ▁hill ▁tribes ▁of ▁An atol ia . ▁Ver an ius ▁and ▁his ▁successor ▁G ai us ▁Su eton ius ▁Paul inus ▁mounted ▁a ▁successful ▁campaign ▁across ▁Wales , ▁fam ously ▁destroy ing ▁the ▁dru id ical ▁centre ▁at ▁Mon a ▁or ▁Ang les ey ▁in ▁ 6 0 ▁at ▁what ▁histor ians ▁later ▁called ▁the ▁Men ai ▁Mass acre . ▁The ▁complete ▁sub j ug ation ▁of ▁Wales ▁was ▁post pon ed ▁however ▁when ▁the ▁re bell ion ▁of ▁B oud ica ▁forced ▁the ▁Rom ans ▁to ▁return ▁to ▁the ▁south - east ▁in ▁ 6 0 ▁or ▁ 6 1 . ▁B oud ica ▁raised ▁an ▁army ▁of ▁over ▁ 2 0 0 , 0 0 0 , ▁caused ▁the