7 8 – 8 4 ) ▁ ▁The ▁new ▁governor ▁was ▁Agr icola , ▁returning ▁to ▁Britain , ▁and ▁made ▁famous ▁through ▁the ▁highly ▁la ud atory ▁bi ography ▁of ▁him ▁written ▁by ▁his ▁son - in - law , ▁T ac it us . ▁Ar riv ing ▁in ▁mid - sum mer ▁of ▁ 7 8 , ▁Agr icola ▁completed ▁the ▁con quest ▁of ▁Wales ▁in ▁defe ating ▁the ▁Ord ov ices ▁who ▁had ▁destroyed ▁a ▁caval ry ▁al a ▁of ▁Roman ▁auxili aries ▁station ed ▁in ▁their ▁territory . ▁Know ing ▁the ▁terrain ▁from ▁his ▁prior ▁military ▁service ▁in ▁Britain , ▁he ▁was ▁able ▁to ▁move ▁quickly ▁to ▁virt ually ▁ex termin ate ▁them . ▁He ▁then ▁inv aded ▁Ang les ey , ▁forcing ▁the ▁inhabitants ▁to ▁sue ▁for ▁peace . ▁▁ ▁The ▁following ▁year ▁he ▁moved ▁against ▁the ▁Brig antes ▁of ▁northern ▁England ▁and ▁the ▁Sel gov ae ▁along ▁the ▁southern ▁coast ▁of ▁Scotland , ▁using ▁over wh el ming ▁military ▁power ▁to ▁re - est ab lish ▁Roman ▁control . ▁ ▁Agr icola ▁in ▁C aled onia ▁T ac it us ▁says ▁that ▁after ▁a ▁combination ▁of ▁force ▁and ▁diplom acy ▁quiet ed ▁dis content ▁among ▁the ▁Brit ons ▁who ▁had ▁been ▁conquer ed ▁previously , ▁Agr icola ▁built ▁for ts ▁in ▁their ▁territ ories ▁in ▁ 7 9 . ▁In ▁ 8 0 ▁he ▁march ed ▁to ▁the ▁F irth ▁of ▁T ay ▁( some ▁histor ians ▁hold ▁that ▁he ▁stopped ▁along ▁the ▁F irth ▁of ▁For th