ian ▁pre fect ▁Quint us ▁A em il ius ▁La et us ▁in ▁ 1 9 2 . ▁The ▁new ▁em peror ▁P ert ina x , ▁who ▁took ▁part ▁in ▁the ▁consp i racy , ▁paid ▁the ▁Pra et ori ans ▁a ▁prem ium ▁of ▁ 3 , 0 0 0 ▁den ari i ; ▁however ▁he ▁was ▁assass in ated ▁three ▁months ▁later , ▁on ▁March ▁ 2 8 ▁ 1 9 3 , ▁by ▁a ▁group ▁of ▁Gu ards . ▁The ▁Pra et ori ans ▁then ▁put ▁the ▁emp ire ▁up ▁to ▁au ction ▁and ▁Did ius ▁Julian us ▁bought ▁the ▁title ▁of ▁em peror . ▁However ▁the ▁arm ies ▁of ▁the ▁Dan ube ▁chose ▁instead ▁the ▁governor ▁of ▁P ann onia ▁Super ior , ▁Sept im ius ▁Sever us , ▁who ▁bes ie ged ▁Rome ▁and ▁trick ed ▁the ▁Pra et ori ans ▁when ▁they ▁came ▁out ▁un ar med . ▁The ▁Pra et or ian ▁Guard ▁was ▁dissol ved ▁and ▁replaced ▁by ▁men ▁transferred ▁from ▁his ▁own ▁army . ▁ ▁The ▁new ▁Guard ▁of ▁Sept im ius ▁Sever us ▁made ▁their ▁mark ▁against ▁his ▁rival ▁Cl od ius ▁Al bin us ▁at ▁the ▁Battle ▁of ▁Lyon ▁in ▁ 1 9 7 , ▁and ▁accompanied ▁the ▁em peror ▁to ▁the ▁Orient ▁from ▁ 1 9 7 ▁to ▁ 2 0 2 , ▁then ▁to ▁Britann ia ▁from ▁ 2 0 8 ▁until ▁his ▁death ▁at ▁York ▁in ▁ 2 1 1 . ▁ ▁Car ac alla , ▁son ▁of