▁of ▁some ▁importance . ▁The ▁name ▁of ▁his ▁mother ▁is ▁unknown , ▁but ▁his ▁brother ▁was ▁Marcus ▁Julius ▁Philipp us , ▁later ▁the ▁Roman ▁Emperor ▁known ▁as ▁" Ph il ip ▁the ▁Arab ". ▁▁ ▁Pr is cus ▁was ▁probably ▁older ▁than ▁Philip , ▁since ▁the ▁latter ' s ▁political ▁career ▁was ▁pushed ▁by ▁the ▁former ' s ▁own ▁influence . ▁According ▁to ▁several ▁ins cri ptions , ▁Pr is cus ▁was ▁Pra ef ect us ▁of ▁the ▁province ▁of ▁Mes op ot am ia ▁a ▁front ier ▁province ▁at ▁the ▁border ▁of ▁Pers ia , ▁therefore ▁highly ▁militar ized . ▁He ▁was ▁the ▁Pro cur ator ▁of ▁Mac ed onia , ▁second ▁in ▁command ▁to ▁Egypt ' s ▁governor ▁and ▁held ▁jud icial ▁respons ib ilities ▁in ▁Alexand ria . ▁Pr is cus ▁became ▁a ▁member ▁of ▁the ▁Pra et or ian ▁Guard ▁around ▁ 2 4 2 ▁during ▁G ord ian ▁III ▁Pers ian ▁campaign , ▁and , ▁when ▁Times it he us ▁– ▁the ▁pra et or ian ▁pre fect ▁– ▁died ▁in ▁ 2 4 3 , ▁he ▁convinced ▁the ▁young ▁em peror ▁to ▁substitute ▁him ▁with ▁his ▁own ▁brother ▁Philip . ▁For ▁a ▁year , ▁Pr is cus ▁and ▁Philip ▁served ▁as ▁de ▁fact o ▁reg ents ▁of ▁G ord ian ▁III . ▁▁ ▁When ▁G ord ian ▁was ▁killed ▁by ▁mut in ous ▁soldiers ▁in ▁ 2 4 4 , ▁Pr is cus ' ▁brother ▁Philipp us ▁became ▁the ▁new ▁em peror . ▁As ▁his ▁brother ▁and