ill ius ▁Cer ial is ▁a ▁few ▁years ▁later , ▁Front inus ▁was ▁appointed ▁su ffect ▁cons ul . ▁While ▁governor ▁of ▁Britain , ▁he ▁sub j ug ated ▁the ▁Sil ures ▁of ▁South ▁Wales ▁and ▁is ▁thought ▁to ▁have ▁like wise ▁campaign ed ▁against ▁the ▁Brig antes . ▁He ▁was ▁succeeded ▁by ▁G na eus ▁Julius ▁Agr icola , ▁the ▁father - in - law ▁of ▁the ▁famous ▁historian ▁T ac it us , ▁in ▁ 7 7 . ▁Bir ley ▁bel ieves ▁it ▁" is ▁fair ▁to ▁spec ulate " ▁that ▁Front inus ▁was ▁with ▁Dom it ian ▁during ▁the ▁German ▁campaign ▁of ▁ 8 3 . ▁An ▁ins cription ▁at ▁Hier opol is ▁in ▁Ph ry gia , ▁as ▁well ▁as ▁a ▁number ▁of ▁co ins ▁of ▁S my r na , ▁att ests ▁that ▁he ▁was ▁pro cons ul ▁of ▁Asia ▁in ▁AD ▁ 8 6 . ▁ ▁In ▁ 9 7 , ▁he ▁was ▁appointed ▁cur ator ▁aqu ar um ▁( super visor ▁of ▁the ▁aqu ed uct s ) ▁by ▁the ▁em peror ▁N erva , ▁an ▁office ▁only ▁con ferred ▁upon ▁persons ▁of ▁very ▁high ▁standing . ▁In ▁this ▁capacity , ▁he ▁followed ▁another ▁distinguished ▁Roman ▁states man , ▁Ag ri ppa , ▁the ▁friend , ▁al ly ▁and ▁son - in - law ▁of ▁August us , ▁who ▁organ ised ▁in ▁ 3 4 ▁BC ▁a ▁campaign ▁of ▁public ▁rep airs ▁and ▁improvements , ▁including ▁renov ation ▁of ▁the ▁aqu ed uct ▁Aqu a ▁Mar